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Chemistry MCQs – Set 8

February 28, 2026

🔬 Chemistry MCQs (Set–8) 71. The de Broglie wavelength of a particle is inversely proportional to its: A) Velocity B) Mass C) Momentum D) Charge 👉 Answer: C) Momentum 72. Which of the following complexes will show the highest magnetic moment? A) [Fe(CN)₆]⁴⁻ B) [Fe(H₂O)₆]²⁺ C) [Co(NH₃)₆]³⁺ D) [Ni(CN)₄]²⁻ 👉 Answer: B) [Fe(H₂O)₆]²⁺ 73. The enthalpy change for formation of 1 mole of a compound from its elements in their standard states is called: A) Lattice enthalpy B) Bond enthalpy C) Standard enthalpy of formation D) Ionization enthalpy 👉 Answer: C) Standard enthalpy of formation 74. Which of the following species has the highest bond dissociation energy? A) F₂ B) Cl₂ C) Br₂ D) I₂ 👉 Answer: B) Cl₂ 75. The number of sigma (σ) and pi (π) bonds in benzene (C₆H₆) respectively are: A) 6σ, 3π B) 9σ, 3π C) 12σ, 3π D) 12σ, 6π 👉 Answer: C) 12σ, 3π 76. Which of the following obeys Beer-Lambert law? A) Highly concentrated solution B) Dilute solution C) Colloidal solution D) Suspension 👉...

English to Hindi Sentences (Set-23)

February 28, 2026

I am working on my confidence. — मैं अपने आत्मविश्वास पर काम कर रहा हूँ। She completed her work with sincerity. — उसने ईमानदारी से अपना काम पूरा किया। He always speaks respectfully. — वह हमेशा सम्मानपूर्वक बोलता है। We should respect traffic rules. — हमें यातायात नियमों का सम्मान करना चाहिए। They reached the classroom early. — वे कक्षा में जल्दी पहुँचे। I will practice speaking English. — मैं अंग्रेज़ी बोलने का अभ्यास करूँगा। She handled the situation independently. — उसने स्थिति को स्वतंत्र रूप से संभाला। He learned discipline through training. — उसने प्रशिक्षण से अनुशासन सीखा। We should stay calm during interviews. — हमें साक्षात्कार के दौरान शांत रहना चाहिए। They enjoyed the interactive session. — उन्होंने संवादात्मक सत्र का आनंद लिया। I forgot to bring my assignment. — मैं अपना असाइनमेंट लाना भूल गया। She always values honesty. — वह हमेशा ईमानदारी को महत्व देती है। He faced obstacles with determination. — उसने बाधाओं का दृढ़ संकल्प के साथ सामना किया। We should help our classmates. ...

English Grammar MCQs – Set 23 (SSC / Banking Exam Focus)

February 28, 2026

Choose the correct option 👇 Tenses 1. By the time he reached the airport, the flight ___ . (a) leaves (b) had left (c) has left (d) was leaving 2. She ___ in this company for seven years. (a) works (b) has been working (c) worked (d) had worked Subject–Verb Agreement 3. Neither the manager nor the assistants ___ responsible. (a) is (b) are (c) was (d) were 4. The team of players ___ practicing for the match. (a) is (b) are (c) were (d) have Articles 5. He is ___ M.Sc. in Mathematics. (a) a (b) an (c) the (d) no article 6. ___ Mount Everest is the highest mountain in the world. (a) A (b) An (c) The (d) No article Prepositions 7. She is proficient ___ Spanish. (a) at (b) in (c) on (d) for 8. He congratulated her ___ winning the competition. (a) on (b) for (c) to (d) with Voice 9. They are constructing a new bridge. Passive voice: (a) A new bridge is constructed. (b) A new bridge is being constructed. (c) A new bridge has been constructed. (d) A new bridge was constructed. Narra...

Chemistry MCQs – Set 7

February 27, 2026

🔬 Chemistry MCQs (Set–7) 61. The IUPAC name of CH₃–CH₂–OH is: A) Methanol B) Propanol C) Ethanol D) Butanol 👉 Answer: C) Ethanol 62. Which of the following compounds shows geometrical isomerism? A) Ethane B) Ethene C) 2-Butene D) Methane 👉 Answer: C) 2-Butene 63. The bond order of O₂ molecule according to Molecular Orbital Theory is: A) 1 B) 2 C) 2.5 D) 3 👉 Answer: B) 2 64. Which of the following is an example of a colligative property? A) Viscosity B) Surface tension C) Osmotic pressure D) Density 👉 Answer: C) Osmotic pressure 65. The catalyst used in the Contact Process for manufacture of sulphuric acid is: A) Iron B) Platinum C) Vanadium pentoxide D) Nickel 👉 Answer: C) Vanadium pentoxide 66. Which quantum number determines the shape of an orbital? A) Principal quantum number (n) B) Azimuthal quantum number (l) C) Magnetic quantum number (m) D) Spin quantum number (s) 👉 Answer: B) Azimuthal quantum number (l) 67. The hybridization of nitrogen in NH₃ is: A) sp B) sp² C) ...

English to Hindi Sentences (Set-22)

February 27, 2026

I am focusing on personal growth. — मैं व्यक्तिगत विकास पर ध्यान दे रहा हूँ। She completed the project efficiently. — उसने परियोजना को कुशलतापूर्वक पूरा किया। He always follows good manners. — वह हमेशा अच्छे शिष्टाचार का पालन करता है। We should respect public property. — हमें सार्वजनिक संपत्ति का सम्मान करना चाहिए। They reached the campus early. — वे परिसर में जल्दी पहुँचे। I will practice English every day. — मैं रोज़ अंग्रेज़ी का अभ्यास करूँगा। She handled the task independently. — उसने कार्य को स्वतंत्र रूप से संभाला। He learned consistency through routine. — उसने दिनचर्या से निरंतरता सीखी। We should stay calm in tough situations. — कठिन परिस्थितियों में हमें शांत रहना चाहिए। They enjoyed the training session. — उन्होंने प्रशिक्षण सत्र का आनंद लिया। I forgot to bring my ID card. — मैं अपना पहचान पत्र लाना भूल गया। She always appreciates good work. — वह हमेशा अच्छे काम की सराहना करती है। He faced the interview confidently. — उसने साक्षात्कार का आत्मविश्वास से सामना किया। We should he...

English Grammar MCQs – Set 22 (SSC / Banking Exam Focus)

February 27, 2026

Choose the correct option 👇 Tenses 1. By the time she reached the station, the train ___ . (a) leaves (b) had left (c) has left (d) was leaving 2. I ___ in this company since 2015. (a) work (b) have worked (c) worked (d) had worked Subject–Verb Agreement 3. Neither the manager nor his assistants ___ available today. (a) is (b) are (c) was (d) were 4. The committee of doctors ___ meeting tomorrow. (a) is (b) are (c) were (d) have Articles 5. He is ___ MBA graduate. (a) a (b) an (c) the (d) no article 6. ___ Ganges is a holy river in India. (a) A (b) An (c) The (d) No article Prepositions 7. He insisted ___ leaving immediately. (a) on (b) in (c) at (d) for 8. She is married ___ a doctor. (a) to (b) with (c) by (d) for Voice 9. They are repairing the roads. Passive voice: (a) The roads are repaired. (b) The roads are being repaired. (c) The roads have been repaired. (d) The roads were repaired. Narration 10. He said, “I have completed the task.” Indirect: (a) He said that he ha...

Chemistry MCQs – Set 6

February 26, 2026

🔬 Chemistry MCQs (Set–6) 51. The number of moles in 44 g of CO₂ is: A) 0.5 B) 1 C) 2 D) 44 👉 Answer: B) 1 (Molar mass of CO₂ = 44 g/mol) 52. The value of Avogadro’s number is: A) 6.022 × 10²³ B) 3.011 × 10²³ C) 1.66 × 10⁻²⁷ D) 22.4 👉 Answer: A) 6.022 × 10²³ 53. Which of the following orbitals has the highest energy in a hydrogen atom? A) 1s B) 2s C) 2p D) 3s 👉 Answer: D) 3s 54. The rate of reaction increases with increase in temperature because: A) Activation energy decreases B) More molecules have energy greater than activation energy C) Collisions decrease D) Concentration increases 👉 Answer: B) More molecules have energy greater than activation energy 55. The oxidation number of Mn in KMnO₄ is: A) +2 B) +4 C) +6 D) +7 👉 Answer: D) +7 56. Which of the following is the strongest reducing agent? A) Na B) Mg C) Al D) Zn 👉 Answer: A) Na 57. The unit of rate constant for a first-order reaction is: A) mol L⁻¹ s⁻¹ B) s⁻¹ C) L mol⁻¹ s⁻¹ D) mol⁻¹ L s⁻¹ 👉 Answer: B) s⁻¹ 58. Whic...

English to Hindi Sentences (Set-21)

February 26, 2026

I am working hard for my goals. — मैं अपने लक्ष्यों के लिए कड़ी मेहनत कर रहा हूँ। She completed the task with confidence. — उसने आत्मविश्वास के साथ कार्य पूरा किया। He always speaks politely. — वह हमेशा विनम्रता से बोलता है। We should respect our teachers. — हमें अपने शिक्षकों का सम्मान करना चाहिए। They reached the office on time. — वे समय पर कार्यालय पहुँचे। I will improve my English daily. — मैं रोज़ अपनी अंग्रेज़ी में सुधार करूँगा। She handled the problem smartly. — उसने समस्या को समझदारी से संभाला। He learned punctuality from school. — उसने स्कूल से समय की पाबंदी सीखी। We should stay calm during exams. — हमें परीक्षाओं के दौरान शांत रहना चाहिए। They enjoyed the learning session. — उन्होंने सीखने के सत्र का आनंद लिया। I forgot to bring my notebook. — मैं अपनी नोटबुक लाना भूल गया। She always encourages honesty. — वह हमेशा ईमानदारी को बढ़ावा देती है। He faced difficulties with courage. — उसने कठिनाइयों का साहस के साथ सामना किया। We should help our friends. — हमें अपने दोस्तों की मदद क...

English Grammar MCQs – Set 21 (SSC / Banking Exam Focus)

February 26, 2026

Choose the correct option 👇 Tenses 1. By the time we reached the station, the train ___ . (a) leaves (b) had left (c) has left (d) was leaving 2. She ___ in this school for six years. (a) works (b) has been working (c) worked (d) had worked Subject–Verb Agreement 3. Neither the principal nor the teachers ___ present today. (a) is (b) are (c) was (d) were 4. A number of students ___ absent yesterday. (a) is (b) are (c) was (d) have Articles 5. He is ___ M.A. in Political Science. (a) a (b) an (c) the (d) no article 6. ___ Nile is the longest river in the world. (a) A (b) An (c) The (d) No article Prepositions 7. She is proficient ___ French. (a) at (b) in (c) on (d) for 8. He congratulated her ___ passing the exam. (a) on (b) for (c) to (d) with Voice 9. They are repairing the school building. Passive voice : (a) The school building is repaired. (b) The school building is being repaired. (c) The school building has been repaired. (d) The school building was repaired. Narration...

Chemistry MCQs – Set 5

February 25, 2026

🔬 Chemistry MCQs (Set–5) 41. The hybridization of carbon in ethene (C₂H₄) is: A) sp B) sp² C) sp³ D) dsp² 👉 Answer: B) sp² 42. Which of the following has the highest electronegativity? A) Oxygen B) Nitrogen C) Fluorine D) Chlorine 👉 Answer: C) Fluorine 43. The SI unit of molar mass is: A) kg B) g C) kg/mol D) g/mol 👉 Answer: C) kg/mol 44. The oxidation state of sulphur in H₂SO₄ is: A) +2 B) +4 C) +6 D) –2 👉 Answer: C) +6 45. Which law states that equal volumes of gases at the same temperature and pressure contain equal number of molecules? A) Boyle’s Law B) Charles’s Law C) Avogadro’s Law D) Graham’s Law 👉 Answer: C) Avogadro’s Law 46. The metal extracted by electrolysis of alumina is: A) Iron B) Aluminium C) Copper D) Zinc 👉 Answer: B) Aluminium 47. Which of the following is an example of a redox reaction? A) NaCl + AgNO₃ → AgCl + NaNO₃ B) HCl + NaOH → NaCl + H₂O C) Zn + CuSO₄ → ZnSO₄ + Cu D) CaCO₃ → CaO + CO₂ 👉 Answer: C) Zn + CuSO₄ → ZnSO₄ + Cu 48. The pH of a basic s...

English to Hindi Sentences (Set-20)

February 25, 2026

I am learning from my experiences. — मैं अपने अनुभवों से सीख रहा हूँ। She completed the work with dedication. — उसने समर्पण के साथ काम पूरा किया। He always maintains self-discipline. — वह हमेशा आत्म-अनुशासन बनाए रखता है। We should respect others’ time. — हमें दूसरों के समय का सम्मान करना चाहिए। They arrived at the airport early. — वे हवाई अड्डे पर जल्दी पहुँचे। I will keep improving my skills. — मैं अपने कौशल में सुधार करता रहूँगा। She handled the situation wisely. — उसने स्थिति को समझदारी से संभाला। He learned honesty from his parents. — उसने अपने माता-पिता से ईमानदारी सीखी। We should stay calm in every condition. — हमें हर परिस्थिति में शांत रहना चाहिए। They enjoyed the memorable journey. — उन्होंने यादगार यात्रा का आनंद लिया। I forgot to bring my documents. — मैं अपने दस्तावेज़ लाना भूल गया। She always supports positive actions. — वह हमेशा सकारात्मक कार्यों का समर्थन करती है। He faced criticism with patience. — उसने आलोचना को धैर्य के साथ झेला। We should help others without delay. —...

English Grammar MCQs – Set 20 (Advanced / Exam-Oriented)

February 25, 2026

Choose the correct option 👇 Tenses 1. By the time we arrived, the class ___ . (a) starts (b) had started (c) has started (d) was starting 2. I ___ here for eight years. (a) work (b) have worked (c) worked (d) had worked Subject–Verb Agreement 3. Neither the principal nor the teachers ___ present today. (a) is (b) are (c) was (d) were 4. A number of students ___ absent yesterday. (a) is (b) are (c) was (d) have Articles 5. He is ___ M.Sc. in Chemistry. (a) a (b) an (c) the (d) no article 6. ___ Amazon is the largest river in the world by volume. (a) A (b) An (c) The (d) No article Prepositions 7. She is proficient ___ English. (a) at (b) in (c) on (d) for 8. He congratulated her ___ winning the competition. (a) on (b) for (c) to (d) with Voice 9. They are building a new hospital. Passive voice: (a) A new hospital is built. (b) A new hospital is being built. (c) A new hospital has been built. (d) A new hospital was built. Narration 10. He said, “I cannot attend the meeting.” I...

Chemistry MCQs – Set 4

February 24, 2026

Here are Chemistry MCQs – Set 4 (Moderate Level) : 🔬 Chemistry MCQs (Set–4) 31. The shape of a methane (CH₄) molecule is: A) Linear B) Trigonal planar C) Tetrahedral D) Square planar 👉 Answer: C) Tetrahedral 32. The electron was discovered by: A) Ernest Rutherford B) James Chadwick C) J.J. Thomson D) Niels Bohr 👉 Answer: C) J.J. Thomson 33. Which of the following is an example of a homogeneous mixture? A) Sand and water B) Oil and water C) Air D) Soil 👉 Answer: C) Air 34. The process of coating iron with zinc to prevent rusting is called: A) Alloying B) Galvanization C) Electroplating D) Smelting 👉 Answer: B) Galvanization 35. Which of the following is a non-metal? A) Sodium B) Magnesium C) Sulphur D) Calcium 👉 Answer: C) Sulphur 36. The molecular formula of glucose is: A) C₆H₆ B) C₆H₁₂O₆ C) C₂H₅OH D) CH₄ 👉 Answer: B) C₆H₁₂O₆ 37. Which particle has no charge? A) Proton B) Electron C) Neutron D) Ion 👉 Answer: C) Neutron 38. The gas evolved when zinc reacts with dilut...

English to Hindi Sentences (Set-19)

February 24, 2026

I am preparing for a better future. — मैं एक बेहतर भविष्य की तैयारी कर रहा हूँ। She completed her task carefully. — उसने अपना कार्य सावधानी से पूरा किया। He always follows ethical values. — वह हमेशा नैतिक मूल्यों का पालन करता है। We should respect nature and environment. — हमें प्रकृति और पर्यावरण का सम्मान करना चाहिए। They arrived at the meeting on time. — वे बैठक में समय पर पहुँचे। I will remain focused on my goals. — मैं अपने लक्ष्यों पर केंद्रित रहूँगा। She managed stress very well. — उसने तनाव को बहुत अच्छे से संभाला। He learned teamwork through sports. — उसने खेलों से टीमवर्क सीखा। We should be patient in life. — हमें जीवन में धैर्य रखना चाहिए। They enjoyed the long conversation. — उन्होंने लंबी बातचीत का आनंद लिया। I forgot to lock the door. — मैं दरवाज़ा बंद करना भूल गया। She always looks for solutions. — वह हमेशा समाधान खोजती रहती है। He faced reality bravely. — उसने हकीकत का साहसपूर्वक सामना किया। We should help others in need. — हमें ज़रूरतमंदों की मदद करनी चाहिए। They were ...

English Grammar MCQs – Set 19 (High-Yield / Exam-Oriented)

February 24, 2026

Choose the correct option 👇 Tenses 1. By the time we reached the cinema, the movie ___ . (a) starts (b) had started (c) has started (d) was starting 2. She ___ in this office for seven years. (a) works (b) has been working (c) worked (d) had worked Subject–Verb Agreement 3. Neither the principal nor the teachers ___ present today. (a) is (b) are (c) was (d) were 4. The collection of rare coins ___ displayed in the museum. (a) is (b) are (c) were (d) have Articles 5. He is ___ M.A. in History. (a) a (b) an (c) the (d) no article 6. ___ Himalayas are the highest mountains in the world. (a) A (b) An (c) The (d) No article Prepositions 7. She is skilled ___ painting. (a) at (b) in (c) on (d) for 8. He apologized ___ arriving late. (a) for (b) of (c) to (d) with Voice 9. They are constructing a new bridge. Passive voice: (a) A new bridge is constructed. (b) A new bridge is being constructed. (c) A new bridge has been constructed. (d) A new bridge was constructed. Narration 10. He...

Chemistry MCQs – Set 3

February 23, 2026

🔬 Chemistry MCQs (Set–3) 21. The modern periodic law was proposed by: A) John Dalton B) Dmitri Mendeleev C) Henry Moseley D) J.J. Thomson 👉 Answer: C) Henry Moseley 22. Which of the following is a strong acid? A) Acetic acid B) Carbonic acid C) Hydrochloric acid D) Boric acid 👉 Answer: C) Hydrochloric acid 23. The number of moles present in 22.4 L of a gas at STP is: A) 0.5 mole B) 1 mole C) 2 moles D) 22.4 moles 👉 Answer: B) 1 mole 24. Which of the following is an exothermic process? A) Photosynthesis B) Melting of ice C) Respiration D) Sublimation 👉 Answer: C) Respiration 25. The oxidation number of oxygen in H₂O is: A) –1 B) –2 C) +1 D) +2 👉 Answer: B) –2 26. Which of the following is used as a catalyst in the Haber process? A) Copper B) Platinum C) Iron D) Nickel 👉 Answer: C) Iron 27. The pH of a strong acid is usually: A) Greater than 7 B) Equal to 7 C) Less than 7 D) Equal to 14 👉 Answer: C) Less than 7 28. Which of the following is a greenhouse gas? A) Oxygen...

English to Hindi Sentences (Set-18)

February 23, 2026

I am improving my communication skills. — मैं अपने संचार कौशल में सुधार कर रहा हूँ। She completed her duties responsibly. — उसने अपनी जिम्मेदारियाँ जिम्मेदारी से पूरी कीं। He always stays calm and polite. — वह हमेशा शांत और विनम्र रहता है। We should respect different opinions. — हमें अलग-अलग विचारों का सम्मान करना चाहिए। They arrived safely at the hotel. — वे सुरक्षित होटल पहुँच गए। I will try my best to succeed. — मैं सफल होने के लिए अपना सर्वश्रेष्ठ प्रयास करूँगा। She managed her time effectively. — उसने अपना समय प्रभावी ढंग से संभाला। He learned leadership through experience. — उसने अनुभव से नेतृत्व सीखा। We should stay focused during work. — हमें काम के दौरान केंद्रित रहना चाहिए। They enjoyed the short trip. — उन्होंने छोटी यात्रा का आनंद लिया। I forgot to submit the form. — मैं फॉर्म जमा करना भूल गया। She always encourages positive thinking. — वह हमेशा सकारात्मक सोच को बढ़ावा देती है। He faced challenges with confidence. — उसने आत्मविश्वास के साथ चुनौतियों का सामना किया। We sh...

English Grammar MCQs – Set 18 (Advanced / Exam-Oriented)

February 23, 2026

Choose the correct option 👇 Tenses 1. By the time he reached the station, the train ___ . (a) leaves (b) had left (c) has left (d) was leaving 2. I ___ in this company since 2016. (a) work (b) have worked (c) worked (d) had worked Subject–Verb Agreement 3. Neither the manager nor his assistants ___ available today. (a) is (b) are (c) was (d) were 4. The team of doctors ___ arriving tomorrow. (a) is (b) are (c) were (d) have Articles 5. He is ___ MBA graduate. (a) a (b) an (c) the (d) no article 6. ___ Pacific Ocean is the largest ocean in the world. (a) A (b) An (c) The (d) No article Prepositions 7. She is proficient ___ German. (a) at (b) in (c) on (d) for 8. He congratulated her ___ passing the exam. (a) on (b) for (c) to (d) with Voice 9. They are repairing the roads. Passive voice: (a) The roads are repaired. (b) The roads are being repaired. (c) The roads have been repaired. (d) The roads were repaired. Narration 10. He said, “I will help you tomorrow.” Indirect: (a) H...

Chemistry MCQs – Set 2

February 22, 2026

🔬 Chemistry MCQs (Set–2) 11. The smallest unit of an element that retains its properties is: A) Molecule B) Atom C) Ion D) Compound 👉 Answer: B) Atom 12. Which of the following is a noble gas? A) Oxygen B) Nitrogen C) Helium D) Hydrogen 👉 Answer: C) Helium 13. The law of conservation of mass was given by: A) Antoine Lavoisier B) John Dalton C) Dmitri Mendeleev D) Henry Moseley 👉 Answer: A) Antoine Lavoisier 14. Which of the following acids is present in vinegar? A) Citric acid B) Acetic acid C) Sulphuric acid D) Nitric acid 👉 Answer: B) Acetic acid 15. The valency of oxygen is: A) 1 B) 2 C) 3 D) 4 👉 Answer: B) 2 16. Which metal is liquid at room temperature? A) Iron B) Mercury C) Copper D) Aluminium 👉 Answer: B) Mercury 17. The chemical symbol ‘K’ stands for: A) Krypton B) Potassium C) Calcium D) Cobalt 👉 Answer: B) Potassium 18. Which gas is known as “laughing gas”? A) Nitric oxide B) Nitrogen dioxide C) Nitrous oxide D) Carbon monoxide 👉 Answer: C) Nitrous oxide 19. ...

English to Hindi Sentences (Set-17)

February 22, 2026

I am trying to build good habits. — मैं अच्छी आदतें विकसित करने की कोशिश कर रहा हूँ। She completed her work patiently. — उसने धैर्यपूर्वक अपना काम पूरा किया। He always thinks before speaking. — वह बोलने से पहले हमेशा सोचता है। We should respect others’ feelings. — हमें दूसरों की भावनाओं का सम्मान करना चाहिए। They arrived at the venue on time. — वे समय पर स्थल पर पहुँचे। I will never stop learning. — मैं कभी सीखना बंद नहीं करूँगा। She handled pressure very well. — उसने दबाव को बहुत अच्छे से संभाला। He remained honest in his duty. — वह अपने कर्तव्य में ईमानदार रहा। We should keep our promises. — हमें अपने वादे निभाने चाहिए। They enjoyed the journey together. — उन्होंने साथ मिलकर यात्रा का आनंद लिया। I forgot to charge my phone. — मैं अपना फोन चार्ज करना भूल गया। She motivates herself every day. — वह हर दिन खुद को प्रेरित करती है। He improved his skills gradually. — उसने धीरे-धीरे अपने कौशल में सुधार किया। We should help people without expectations. — हमें बिना अपेक्षा के लोगों की मदद करन...

English Grammar MCQs – Set 17 (Cloze Tests, Phrasal Verbs & Tricky Grammar)

February 22, 2026

Choose the correct option 👇 Tenses 1. By the time we reached the airport, the plane ___ . (a) leaves (b) had left (c) has left (d) was leaving 2. She ___ in this company for six years. (a) works (b) worked (c) has been working (d) had worked Subject–Verb Agreement 3. Neither the teacher nor the students ___ willing to cooperate. (a) is (b) are (c) was (d) have 4. The committee ___ decided to postpone the meeting. (a) has (b) have (c) are (d) were Articles 5. He is ___ MBA graduate. (a) a (b) an (c) the (d) no article 6. ___ Amazon is the largest river by volume. (a) A (b) An (c) The (d) No article Prepositions 7. He insisted ___ leaving immediately. (a) on (b) in (c) at (d) for 8. She is married ___ a doctor. (a) to (b) with (c) by (d) for Voice 9. They are repairing the school building. Passive voice: (a) The school building is repaired. (b) The school building is being repaired. (c) The school building has been repaired. (d) The school building was repaired. Narration 10. ...

Chemistry MCQs (Set–1)

February 21, 2026

🔬 Chemistry MCQs 1. The atomic number of an element represents: A) Number of neutrons B) Number of protons C) Number of electrons only D) Sum of protons and neutrons 👉 Answer: B) Number of protons 2. The SI unit of pressure is: A) Atmosphere B) Bar C) Pascal D) mmHg 👉 Answer: C) Pascal 3. The gas used in the manufacture of ammonia in the Haber process is: A) Oxygen B) Nitrogen C) Hydrogen D) Nitrogen and Hydrogen 👉 Answer: D) Nitrogen and Hydrogen 4. Which of the following is an alkali metal? A) Calcium B) Sodium C) Magnesium D) Aluminium 👉 Answer: B) Sodium 5. The pH value of a neutral solution at 25°C is: A) 0 B) 14 C) 7 D) 1 👉 Answer: C) 7 6. Who proposed the atomic theory in 1808? A) J.J. Thomson B) John Dalton C) Ernest Rutherford D) Niels Bohr 👉 Answer: B) John Dalton 7. The chemical formula of washing soda is: A) NaCl B) Na2CO3·10H2O C) NaHCO3 D) CaCO3 👉 Answer: B) Na2CO3·10H2O 8. Which type of bond is formed by sharing of electrons? A) Ionic bond B) Covalent...

English to Hindi Sentences (Set-16)

February 21, 2026

I am working to improve myself. — मैं खुद को बेहतर बनाने के लिए काम कर रहा हूँ। She completed her assignment neatly. — उसने अपना असाइनमेंट साफ-सुथरे ढंग से पूरा किया। He always stays disciplined. — वह हमेशा अनुशासित रहता है। We should respect time and effort. — हमें समय और मेहनत का सम्मान करना चाहिए। They reached the office early. — वे दफ्तर जल्दी पहुँच गए। I will focus on my responsibilities. — मैं अपनी ज़िम्मेदारियों पर ध्यान दूँगा। She managed the work efficiently. — उसने काम को कुशलतापूर्वक संभाला। He faced criticism calmly. — उसने आलोचना को शांति से लिया। We should speak politely to everyone. — हमें सभी से विनम्रता से बात करनी चाहिए। They enjoyed the morning walk. — उन्होंने सुबह की सैर का आनंद लिया। I forgot to bring my umbrella. — मैं अपनी छतरी लाना भूल गया। She always motivates her team. — वह हमेशा अपनी टीम को प्रेरित करती है। He improved through continuous practice. — उसने निरंतर अभ्यास से सुधार किया। We should help the poor and needy. — हमें गरीबों और ज़रूरतमंदों की मदद करनी ...

English Grammar MCQs – Set 16 (Idioms, Phrasal Verbs & Advanced Grammar)

February 21, 2026

Choose the correct option 👇 Tenses 1. By the time he reached, the show ___ . (a) starts (b) had started (c) has started (d) was starting 2. She ___ here for five hours. (a) waits (b) has been waiting (c) waited (d) had waited Subject–Verb Agreement 3. Neither the manager nor his assistants ___ responsible. (a) is (b) are (c) was (d) were 4. A group of students ___ participating in the competition. (a) is (b) are (c) were (d) have Articles 5. He is ___ M.Sc. in Physics. (a) a (b) an (c) the (d) no article 6. ___ Alps are a famous mountain range in Europe. (a) A (b) An (c) The (d) No article Prepositions 7. She is proficient ___ French. (a) at (b) in (c) on (d) for 8. He congratulated her ___ winning the prize. (a) on (b) for (c) to (d) with Voice 9. They are repairing the roads. Passive voice: (a) The roads are repaired. (b) The roads are being repaired. (c) The roads have been repaired. (d) The roads were repaired. Narration 10. He said, “I will complete the work tomorrow.” ...

English to Hindi Sentences (Set-15)

February 20, 2026

I am determined to succeed. — मैं सफल होने के लिए दृढ़ संकल्पित हूँ। She completed the task on time. — उसने काम समय पर पूरा किया। He always keeps learning. — वह हमेशा सीखता रहता है। We should respect honest people. — हमें ईमानदार लोगों का सम्मान करना चाहिए। They reached their destination safely. — वे सुरक्षित अपने गंतव्य पर पहुँचे। I will take care of my health. — मैं अपने स्वास्थ्य का ध्यान रखूँगा। She handled the issue calmly. — उसने मुद्दे को शांति से संभाला। He worked sincerely for success. — उसने सफलता के लिए ईमानदारी से काम किया। We should stay focused on our aim. — हमें अपने लक्ष्य पर केंद्रित रहना चाहिए। They enjoyed the family dinner. — उन्होंने पारिवारिक रात्रिभोज का आनंद लिया। I forgot to bring my charger. — मैं अपना चार्जर लाना भूल गया। She always follows discipline. — वह हमेशा अनुशासन का पालन करती है। He faced problems bravely. — उसने समस्याओं का साहस से सामना किया। We should help our neighbors. — हमें अपने पड़ोसियों की मदद करनी चाहिए। They were happy with the arrangement....

English Grammar MCQs – Set 15 (Tricky / Exam-Oriented)

February 20, 2026

Choose the correct option 👇 Tenses 1. By the time he reached, the movie ___ . (a) starts (b) had started (c) has started (d) was starting 2. She ___ here for three hours. (a) waits (b) has been waiting (c) waited (d) had waited Subject–Verb Agreement 3. Either the manager or his assistants ___ responsible for the task. (a) is (b) are (c) was (d) were 4. A group of tourists ___ visiting the museum. (a) is (b) are (c) were (d) have Articles 5. He is ___ M.A. in Economics. (a) a (b) an (c) the (d) no article 6. ___ Mount Everest is the highest mountain in the world. (a) A (b) An (c) The (d) No article Prepositions 7. He is proficient ___ English. (a) at (b) in (c) on (d) for 8. She congratulated him ___ his success. (a) on (b) for (c) to (d) with Voice 9. They have completed the construction of the bridge. Passive voice: (a) The bridge has completed. (b) The bridge has been completed. (c) The bridge is completed. (d) The bridge was completed. Narration 10. He said, “I cannot at...

English to Hindi Sentences (Set-14)

February 19, 2026

I am ready to learn new things. — मैं नई चीज़ें सीखने के लिए तैयार हूँ। She handled her responsibilities well. — उसने अपनी ज़िम्मेदारियाँ अच्छी तरह निभाईं। He always speaks the truth. — वह हमेशा सच बोलता है। We should respect our parents. — हमें अपने माता-पिता का सम्मान करना चाहिए। They reached the station early. — वे स्टेशन जल्दी पहुँच गए। I will complete my work today. — मैं आज अपना काम पूरा करूँगा। She worked very sincerely. — उसने बहुत ईमानदारी से काम किया। He learned from his mistakes. — उसने अपनी गलतियों से सीखा। We should remain calm in difficulties. — कठिनाइयों में हमें शांत रहना चाहिए। They enjoyed the holiday together. — उन्होंने छुट्टी का साथ-साथ आनंद लिया। I forgot to bring my books. — मैं अपनी किताबें लाना भूल गया। She always helps others. — वह हमेशा दूसरों की मदद करती है। He achieved success through patience. — उसने धैर्य के माध्यम से सफलता पाई। We should be honest in life. — हमें जीवन में ईमानदार होना चाहिए। They were happy with the service. — वे सेवा से खुश थे। I will t...

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