Knowledge for all

281. The statement “P ≠ NP” would immediately imply: A) NP ⊄ P B) No NP-Complete problem is solvable in polynomial time C) There exist problems verifiable but not efficiently solvable D) All of the above Answer: D) All of the above 282. The class coNP consists of languages whose complements are in: A) P B) NP C) PSPACE D) EXP Answer: B) NP 283. If PH collapses to level k, then: A) All higher levels equal Σₖ^P B) PSPACE collapses C) NP = PSPACE D) EXP collapses Answer: A) All higher levels equal Σₖ^P 284. The problem of graph isomorphism is currently known to be in: A) P (proven decades ago) B) NP-Complete C) Quasi-polynomial time D) PSPACE-Complete Answer: C) Quasi-polynomial time 285. The class #P deals with: A) Optimization problems B) Counting accepting paths C) Space-bounded computation D) Quantum proofs Answer: B) Counting accepting paths 286. If #P = FP (polynomial-time computable functions), then: A) P = NP B) PH collapses C) PSPACE = NP D) BQP = P Answer: B) PH collapses ...

इतिहास के MCQ (भाग–21 | 201–210)

इतिहास MCQ 201. सिंधु घाटी सभ्यता में अधिकांश लोग किस पेशे से जुड़े थे? A. शिकार B. कृषि C. व्यापार D. शिल्पकला उत्तर: B 202. हड़प्पा सभ्यता की प्रमुख विशेषता क्या थी? A. विशाल महल B. नगर नियोजन और जल निकासी C. किले D. स्तूप उत्तर: B 203. आर्यों के आगमन का मुख्य स्रोत कौन सा है? A. महाभारत B. वेद C. पुराण D. उपनिषद उत्तर: B 204. मौर्य साम्राज्य का विस्तार किस सम्राट के समय सबसे अधिक हुआ? A. चंद्रगुप्त मौर्य B. बिंदुसार C. अशोक D. सम्राट सम्राट उत्तर: C 205. अशोक ने किस युद्ध के बाद बौद्ध धर्म अपनाया? A. कलिंग युद्ध B. पाटलिपुत्र युद्ध C. मगध युद्ध D. कर्णाट युद्ध उत्तर: A 206. गुप्त साम्राज्य किसके अधीन श्रेष्ठ माना जाता है? A. चंद्रगुप्त प्रथम B. चंद्रगुप्त द्वितीय C. कुमारगुप्त D. Skandagupta उत्तर: B 207. अजंता और एलोरा की गुफाएँ किसके समय प्रसिद्ध हुईं? A. गुप्त काल B. मौर्य काल C. शुंग काल D. तुगलक काल उत्तर: A 208. चंद्रगुप्त मौर्य के मंत्री कौन थे? A. पंचतंत्र B. कौटिल्य (चाणक्य) C. बिंदुसार D. अशोक उत्तर: B 209. कुषाण साम्राज्य के प्रसिद्ध शासक कौन थे? A. कनीयकुमार B. क...

Chemistry MCQs (Set–44)

Here are 🔬 Chemistry MCQs – Set 44 (Hyper Ultimate Chemistry Challenge 🔥🔥🔥🔥🔥) 431. The total number of nodes in 6p orbital is: A) 4 B) 5 C) 6 D) 3 👉 Answer: B (Total nodes = n – 1 = 6 – 1 = 5) 432. Which of the following has highest ionization enthalpy? A) Li B) Be C) B D) Ne 👉 Answer: D 433. The number of σ-bonds in propane (C₃H₈) is: A) 8 B) 9 C) 10 D) 11 👉 Answer: C 434. The pH of 0.1 M NaOH solution is: A) 11 B) 12 C) 13 D) 14 👉 Answer: C 435. Which carbocation is most stable? A) Methyl B) Primary C) Secondary D) Tertiary 👉 Answer: D 436. The bond order of N₂ molecule is: A) 2 B) 2.5 C) 3 D) 1 👉 Answer: C 437. The number of unpaired electrons in Cr²⁺ (d⁴, high spin) is: A) 2 B) 3 C) 4 D) 1 👉 Answer: C 438. For a first-order reaction, 75% reaction corresponds to: A) 1 half-life B) 2 half-lives C) 3 half-lives D) 4 half-lives 👉 Answer: B 439. Which compound gives positive Tollens’ test? A) Acetone B) Propanal C) Benzophenone D) Acetamide 👉 Answer: B 440. ...

English Grammar MCQs – Set 59 (SSC / Banking / Railway | Exam-Focused Practice)

Choose the correct option 👇 Error Spotting (Q1–Q6) 1. One of the most useful book for beginners is this one. (a) One of the most (b) useful book (c) for beginners (d) is this one 2. He has been staying in this city since four months. (a) He has been staying (b) in this city (c) since four months (d) no error 3. Each of the candidates have to submit their forms today. (a) Each (b) of the candidates (c) have to submit (d) their forms 4. She did not wrote the letter yesterday. (a) She did not (b) wrote (c) the letter (d) yesterday 5. The number of students are increasing every year. (a) The number (b) of students (c) are increasing (d) every year 6. No sooner had the show begun when the lights went off. (a) No sooner had (b) the show begun (c) when (d) the lights went off Sentence Improvement (Q7–Q11) 7. He is senior than all his friends. (a) senior to (b) senior from (c) senior than (d) no improvement 8. She insisted to meet the manager. (a) insisted on meeting (b) insisted for ...

English to Hindi Sentences (Set-59)

I study English with full dedication. — मैं पूरी लगन से अंग्रेज़ी पढ़ता हूँ। She prepares notes in a simple way. — वह सरल तरीके से नोट्स बनाती है। He follows a fixed study schedule. — वह एक निश्चित अध्ययन समय-सारिणी का पालन करता है। We should revise important formulas daily. — हमें महत्वपूर्ण सूत्र रोज़ दोहराने चाहिए। They maintain discipline in their routine. — वे अपनी दिनचर्या में अनुशासन बनाए रखते हैं। I practice speaking English aloud. — मैं अंग्रेज़ी ज़ोर से बोलने का अभ्यास करता हूँ। She learns grammar rules carefully. — वह व्याकरण के नियम ध्यान से सीखती है। He reads English passages fluently. — वह अंग्रेज़ी गद्यांश धाराप्रवाह पढ़ता है। We should improve step by step. — हमें कदम-कदम सुधार करना चाहिए। They enjoyed the learning process. — उन्होंने सीखने की प्रक्रिया का आनंद लिया। I revise vocabulary before sleeping. — मैं सोने से पहले शब्दावली दोहराता हूँ। She avoids careless errors. — वह लापरवाह गलतियों से बचती है। He understands questions quickly. — वह प्रश्नों को जल्दी समझ लेता ह...

Computer Science MCQs (Set–28 | Level — Quantum, Fine-Grained & Meta-Complexity 😈🔥)

271. The class MIP* (multi-prover interactive proofs with entanglement) was shown to equal: A) NEXP B) PSPACE C) RE D) EXP Answer: C) RE 272. The breakthrough result MIP* = RE was proved by (among others): A) Scott Aaronson B) Ran Raz C) John von Neumann D) Claude Shannon Answer: B) Ran Raz 273. The Orthogonal Vectors Conjecture is central in: A) Classical cryptography B) Fine-grained complexity C) Automata minimization D) Quantum supremacy Answer: B) Fine-grained complexity 274. The class PP is known to contain: A) BPP B) NP C) PH D) All of the above Answer: D) All of the above 275. Toda’s Theorem states that: A) PH ⊆ P B) PH ⊆ PSPACE C) PH ⊆ P^PP D) PP ⊆ PH Answer: C) PH ⊆ P^PP 276. The Minimum Circuit Size Problem (MCSP) is important in: A) Meta-complexity B) Graph theory C) Quantum algorithms D) Formal languages Answer: A) Meta-complexity 277. It is known that BQP is contained in: A) NP B) AM C) PSPACE D) EXPTIME only Answer: C) PSPACE 278. The Exponential Time Hypothesis (E...

इतिहास के MCQ (भाग–20 | 191–200)

इतिहास MCQ 191. रानी लक्ष्मीबाई का जन्म वर्ष क्या था? A. 1825 B. 1835 C. 1840 D. 1850 उत्तर: B 192. तात्या टोपे का मुख्य योगदान किस क्रांति में था? A. 1857 की क्रांति B. 1920 असहयोग आंदोलन C. जलियाँवाला बाग विरोध D. नमक सत्याग्रह उत्तर: A 193. 1857 की क्रांति में बहादुर शाह जफ़र का क्या रोल था? A. अंग्रेजों का साथ दिया B. विद्रोह का प्रतीक बनें C. क्रांति का मुख्य सेनापति D. कोई योगदान नहीं उत्तर: B 194. मेरठ विद्रोह 1857 में किस वजह से हुआ? A. किसानों के अत्याचार B. सैनिकों के चर्बीयुक्त कारतूस C. करों में वृद्धि D. सभी उपर्युक्त उत्तर: D 195. भारत की आज़ादी के समय अंतिम वायसराय कौन थे? A. लॉर्ड कर्ज़न B. लॉर्ड माउंटबेटन C. लॉर्ड रिपन D. लॉर्ड डलहौजी उत्तर: B 196. भारत का स्वतंत्रता अधिनियम किस वर्ष लागू हुआ? A. 1946 B. 1947 C. 1948 D. 1950 उत्तर: B 197. भारत की स्वतंत्रता के समय विभाजन किस आधार पर हुआ? A. भाषा B. धर्म C. जाति D. क्षेत्र उत्तर: B 198. भारत का संविधान कब लागू हुआ? A. 15 अगस्त 1947 B. 26 जनवरी 1950 C. 2 अक्टूबर 1950 D. 26 नवंबर 1949 उत्तर: B 199. भारत के पहले प्...

Chemistry MCQs (Set–43)

Here are 🔬 Chemistry MCQs – Set 43 (Ultimate Perfection Level 🔥🔥🔥🔥🔥) 421. The number of angular nodes in 6f orbital is: A) 2 B) 3 C) 4 D) 5 👉 Answer: B (Angular nodes = l = 3 for f-orbital) 422. Which of the following has highest atomic radius? A) Na B) K C) Rb D) Cs 👉 Answer: D 423. The number of π-bonds in ethyne (C₂H₂) is: A) 1 B) 2 C) 3 D) 4 👉 Answer: B 424. The pH of 1×10⁻² M HNO₃ solution is: A) 1 B) 2 C) 3 D) 4 👉 Answer: B 425. Which radical is most stable? A) Primary B) Secondary C) Tertiary D) Benzyl 👉 Answer: D 426. The bond order of O₂ molecule is: A) 1 B) 1.5 C) 2 D) 2.5 👉 Answer: C 427. The number of unpaired electrons in Mn²⁺ (high spin, d⁵) is: A) 3 B) 4 C) 5 D) 2 👉 Answer: C 428. For a second-order reaction, half-life is: A) Constant B) Inversely proportional to initial concentration C) Directly proportional to initial concentration D) Independent of temperature 👉 Answer: B 429. Which compound is strongest acid? A) Phenol B) p-Nitrophenol C) E...

English Grammar MCQs – Set 58 (SSC / Banking / Railway | High Accuracy Practice)

Choose the correct option 👇 Error Spotting (Q1–Q6) 1. One of the most important chapter of this book is missing. (a) One of the most (b) important chapter (c) of this book (d) is missing 2. He has been preparing for the exam since two years. (a) He has been preparing (b) for the exam (c) since two years (d) no error 3. Each of the employees have submitted their reports. (a) Each (b) of the employees (c) have submitted (d) their reports 4. She did not ate anything in the morning. (a) She did not (b) ate (c) anything (d) in the morning 5. The number of applicants have increased this year. (a) The number (b) of applicants (c) have increased (d) this year 6. No sooner had the match started when it began to rain. (a) No sooner had (b) the match started (c) when (d) it began to rain Sentence Improvement (Q7–Q11) 7. He is inferior than his opponent in strength. (a) inferior to (b) inferior from (c) inferior than (d) no improvement 8. She insisted to come with us. (a) insisted on comi...

English to Hindi Sentences (Set-58)

I start revision early in the morning. — मैं सुबह जल्दी पुनरावृत्ति शुरू करता हूँ। She studies with full concentration. — वह पूरी एकाग्रता के साथ पढ़ाई करती है। He follows his daily routine strictly. — वह अपनी दैनिक दिनचर्या का सख्ती से पालन करता है। We should set clear objectives. — हमें स्पष्ट उद्देश्य निर्धारित करने चाहिए। They maintain balance in their schedule. — वे अपने कार्यक्रम में संतुलन बनाए रखते हैं। I practice translation daily. — मैं रोज़ अनुवाद का अभ्यास करता हूँ। She checks her notes regularly. — वह अपने नोट्स नियमित रूप से जाँचती है। He understands grammar rules well. — वह व्याकरण के नियम अच्छी तरह समझता है। We should avoid unnecessary stress. — हमें अनावश्यक तनाव से बचना चाहिए। They shared responsibilities equally. — उन्होंने जिम्मेदारियाँ समान रूप से बाँटीं। I am improving my vocabulary gradually. — मैं धीरे-धीरे अपनी शब्दावली बढ़ा रहा हूँ। She writes answers confidently in exams. — वह परीक्षा में आत्मविश्वास से उत्तर लिखती है। He keeps himself motivated. — वह खुद को ...

Computer Science MCQs (Set–27 | Level — Cryptography, Derandomization & Circuit Lower Bounds 😈🔥)

261. If one-way functions exist, then which class separation follows? A) P = NP B) P ≠ UP C) NP = coNP D) PSPACE = NP Answer: B) P ≠ UP 262. The existence of pseudorandom generators implies: A) P = NP B) BPP ⊆ P/poly C) BPP = P (under strong assumptions) D) NP ⊆ BPP Answer: C) BPP = P (under strong assumptions) 263. The Nisan–Wigderson framework connects: A) Quantum computing and NP B) Circuit lower bounds and derandomization C) PCP and SAT D) PSPACE and IP Answer: B) Circuit lower bounds and derandomization 264. If NP has polynomial-size circuits, then the Polynomial Hierarchy: A) Is infinite B) Collapses to Σ₂^P C) Collapses to P D) Equals PSPACE Answer: B) Collapses to Σ₂^P 265. The Karp–Lipton Theorem states that if NP ⊆ P/poly, then: A) P = NP B) PH collapses C) PSPACE = NP D) EXPTIME collapses Answer: B) PH collapses 266. The Natural Proofs barrier (by Alexander Razborov and Steven Rudich) shows limitations in proving: A) P ≠ PSPACE B) Circuit lower bounds C) ETH D) BQP ⊆ PH...

इतिहास के MCQ (भाग–19 | 181–190)

इतिहास MCQ 181. 1920 में शुरू हुए असहयोग आंदोलन का प्रमुख नेता कौन था? A. बाल गंगाधर तिलक B. महात्मा गांधी C. लाला लाजपत राय D. बिपिन चंद्र पाल उत्तर: B 182. चौरी-चौरा कांड के कारण असहयोग आंदोलन वापस क्यों लिया गया? A. आंदोलन असफल हुआ B. हिंसा फैल गई C. ब्रिटिश दबाव D. नेताओं का असहमति उत्तर: B 183. सविनय अवज्ञा आंदोलन कब शुरू हुआ था? A. 1929 B. 1930 C. 1931 D. 1932 उत्तर: B 184. नमक सत्याग्रह का नेतृत्व किसने किया? A. बाल गंगाधर तिलक B. महात्मा गांधी C. सरदार पटेल D. जवाहरलाल नेहरू उत्तर: B 185. भारत छोड़ो आंदोलन किस वर्ष शुरू हुआ था? A. 1940 B. 1942 C. 1945 D. 1946 उत्तर: B 186. क्रिप्स मिशन भारत कब आया था? A. 1940 B. 1942 C. 1945 D. 1946 उत्तर: B 187. गांधी–इरविन समझौता किस वर्ष हुआ? A. 1929 B. 1930 C. 1931 D. 1932 उत्तर: C 188. रॉलेस्टन रिपोर्ट किस घटना से संबंधित है? A. जलियाँवाला बाग हत्याकांड B. भारत छोड़ो आंदोलन C. असहयोग आंदोलन D. क्रांतिकारी आंदोलन उत्तर: A 189. भारतीय राष्ट्रीय कांग्रेस का लाल-बाल-पाल कौन-से नेता थे? A. गांधी, पटेल, नेहरू B. लाला लाजपत राय, बाल गंगाध...

Chemistry MCQs (Set–42)

Here are 🔬 Chemistry MCQs – Set 42 (Final Infinite Advanced Series 🔥🔥🔥🔥🔥) 411. The number of radial nodes in 8s orbital is: A) 6 B) 7 C) 8 D) 5 👉 Answer: B (Radial nodes = n – l – 1 = 8 – 0 – 1 = 7) 412. Which of the following has highest first ionization enthalpy? A) P B) S C) Cl D) Ar 👉 Answer: D 413. The number of σ-bonds in ethane (C₂H₆) is: A) 6 B) 7 C) 8 D) 9 👉 Answer: B 414. The pH of 1×10⁻⁴ M HNO₃ solution is: A) 3 B) 4 C) 5 D) 2 👉 Answer: B 415. Which carbocation is most stable? A) Secondary B) Tertiary C) Benzyl D) Allyl 👉 Answer: C 416. The bond order of NO molecule is: A) 2 B) 2.5 C) 3 D) 1.5 👉 Answer: B 417. The number of unpaired electrons in Fe²⁺ (low spin, d⁶) is: A) 0 B) 1 C) 2 D) 4 👉 Answer: A 418. For a zero-order reaction, half-life depends on: A) Temperature only B) Rate constant only C) Initial concentration D) Pressure only 👉 Answer: C 419. Which compound gives positive Fehling’s test? A) Benzaldehyde B) Acetaldehyde C) Acetone D) Benzo...

English Grammar MCQs – Set 57 (SSC / Banking / Railway | Accuracy Booster)

Choose the correct option 👇 Error Spotting (Q1–Q6) 1. One of the most popular actor of Bollywood has won many awards. (a) One of the most (b) popular actor (c) of Bollywood (d) has won many awards 2. He has been working in this office since three years. (a) He has been working (b) in this office (c) since three years (d) no error 3. Each of the students were given a certificate. (a) Each (b) of the students (c) were given (d) a certificate 4. She did not knew the answer to the question. (a) She did not (b) knew (c) the answer (d) to the question 5. The cost of living have increased rapidly. (a) The cost (b) of living (c) have increased (d) rapidly 6. No sooner had the bell rung when the students rushed out. (a) No sooner had (b) the bell rung (c) when (d) the students rushed out Sentence Improvement (Q7–Q11) 7. He is superior than his rival in skill. (a) superior to (b) superior from (c) superior than (d) no improvement 8. She objected to my going there, didn’t she? (a) object...

English to Hindi Sentences (Set-57)

I wake up with determination every day. — मैं हर दिन दृढ़ निश्चय के साथ उठता हूँ। She plans her studies wisely. — वह अपनी पढ़ाई की समझदारी से योजना बनाती है। He completes his homework regularly. — वह अपना गृहकार्य नियमित रूप से पूरा करता है। We should stay focused on our goals. — हमें अपने लक्ष्यों पर केंद्रित रहना चाहिए। They believe in disciplined living. — वे अनुशासित जीवन में विश्वास रखते हैं। I revise important topics carefully. — मैं महत्वपूर्ण विषयों को ध्यान से दोहराता हूँ। She practices speaking in front of the mirror. — वह आईने के सामने बोलने का अभ्यास करती है। He listens to instructions attentively. — वह निर्देशों को ध्यानपूर्वक सुनता है। We should manage stress effectively. — हमें तनाव को प्रभावी ढंग से संभालना चाहिए। They reached a fair conclusion. — वे एक निष्पक्ष निष्कर्ष पर पहुँचे। I am improving my reading speed. — मैं अपनी पढ़ने की गति सुधार रहा हूँ। She avoids negative thinking. — वह नकारात्मक सोच से बचती है। He remains calm during exams. — वह परीक्षाओं के दौरान शांत...

Computer Science MCQs (Set–26 | 600-Level Open Problems & Modern Frontiers 😈🔥)

251. The famous open problem asking whether every problem whose solution can be verified in polynomial time can also be solved in polynomial time is: A) NP vs coNP B) P vs PSPACE C) P vs NP D) EXP vs NEXP Answer: C) P vs NP 252. The Strong Exponential Time Hypothesis (SETH) concerns the time complexity of: A) Graph Coloring B) SAT C) Hamiltonian Cycle D) Clique Answer: B) SAT 253. If the Exponential Time Hypothesis (ETH) fails, then: A) 3-SAT can be solved in sub-exponential time B) P = NP C) PSPACE collapses D) EXPTIME = NP Answer: A) 3-SAT can be solved in sub-exponential time 254. The Unique Games Conjecture (UGC) has deep implications for: A) Automata Theory B) Approximation Hardness C) Space Complexity D) Quantum Complexity Answer: B) Approximation Hardness 255. Which quantum complexity class captures problems solvable by a quantum computer in polynomial time with bounded error? A) BQP B) QMA C) QIP D) QSPACE Answer: A) BQP 256. It is known that QIP = A) NP B) PSPACE C) EXP D...

इतिहास के MCQ (भाग–18 | 171–180)

इतिहास MCQ 171. 1857 की क्रांति का नेतृत्व किसने किया था? A. तात्या टोपे B. नाना साहेब C. रानी लक्ष्मीबाई D. सभी उपर्युक्त उत्तर: D 172. झाँसी की रानी का वास्तविक नाम क्या था? A. मणिकर्णिका B. लक्ष्मी C. पद्मावती D. अहिल्याबाई उत्तर: A 173. मेरठ विद्रोह का मुख्य कारण क्या था? A. ब्रिटिश सरकार का अत्याचार B. चर्बीयुक्त कारतूस C. धार्मिक हस्तक्षेप D. उपर्युक्त सभी उत्तर: D 174. पानीपत का प्रथम युद्ध किस वर्ष हुआ था? A. 1526 B. 1556 C. 1761 D. 1707 उत्तर: A 175. पानीपत का द्वितीय युद्ध किसके बीच हुआ था? A. बाबर–लोदी B. अकबर–हेमू C. अहमद शाह–माराठा D. अहमद शाह–सिकंदर उत्तर: B 176. पानीपत का तृतीय युद्ध किस वर्ष हुआ था? A. 1526 B. 1556 C. 1761 D. 1775 उत्तर: C 177. क्रांतिकारी आंदोलन के दौरान भगत सिंह ने किस संगठन की स्थापना की? A. हिंदुस्तान रिपब्लिकन एसोसिएशन B. गदर पार्टी C. भारतीय राष्ट्रीय सेना D. नैशनल कांग्रेस उत्तर: A 178. सुभाष चंद्र बोस ने भारतीय राष्ट्रीय सेना का गठन किस वर्ष किया? A. 1939 B. 1942 C. 1943 D. 1945 उत्तर: C 179. ‘दिल्ली चलो’ नारा किसने दिया? A. भगत सिंह B. ...

Chemistry MCQs (Set–41)

Here are 🔬 Chemistry MCQs – Set 41 (Mega Grand Master Level 🔥🔥🔥🔥🔥) 401. The number of orbitals in n = 6 shell is: A) 18 B) 24 C) 36 D) 72 👉 Answer: C (Total orbitals = n² = 6² = 36) 402. Which of the following has highest electron gain enthalpy? A) Cl B) F C) Br D) I 👉 Answer: A 403. The number of π-bonds in benzene is: A) 2 B) 3 C) 4 D) 6 👉 Answer: B 404. The pH of 0.00001 M NaOH solution is: A) 9 B) 8 C) 7 D) 6 👉 Answer: A 405. Which carbocation is most stable? A) Methyl B) Primary C) Allyl D) Secondary 👉 Answer: C 406. The bond order of O₂ molecule is: A) 1 B) 1.5 C) 2 D) 2.5 👉 Answer: C 407. The number of unpaired electrons in Ni³⁺ (d⁷, low spin) is: A) 0 B) 1 C) 2 D) 3 👉 Answer: B 408. For a first-order reaction, 87.5% completion corresponds to: A) 2 half-lives B) 3 half-lives C) 4 half-lives D) 5 half-lives 👉 Answer: B 409. Which compound is strongest acid? A) HCOOH B) CH₃COOH C) CCl₃COOH D) Phenol 👉 Answer: C 410. The geometry of BrF₃ is: A) T-...

English Grammar MCQs – Set 56 (SSC / Banking / Railway | Advanced Practice)

Choose the correct option 👇 Error Spotting (Q1–Q6) 1. One of the most intelligent boy in the class has won the prize. (a) One of the most (b) intelligent boy (c) in the class (d) has won the prize 2. He has been living in Delhi since five years. (a) He has been living (b) in Delhi (c) since five years (d) no error 3. Each of the players have been given a prize. (a) Each (b) of the players (c) have been given (d) a prize 4. She did not went to school yesterday. (a) She did not (b) went (c) to school (d) yesterday 5. The quality of these products are excellent. (a) The quality (b) of these products (c) are (d) excellent 6. No sooner had he reached the station when the train left. (a) No sooner had (b) he reached (c) when (d) the train left Sentence Improvement (Q7–Q11) 7. He is senior than me in experience. (a) senior to (b) senior from (c) senior than (d) no improvement 8. She insisted to pay the bill herself. (a) insisted on paying (b) insisted for paying (c) insisted to payin...

English to Hindi Sentences (Set-56)

I revise my lessons every night. — मैं हर रात अपने पाठ दोहराता हूँ। She keeps calm in difficult situations. — वह कठिन परिस्थितियों में शांत रहती है। He completes tasks before deadlines. — वह समय-सीमा से पहले काम पूरा करता है। We should plan our day properly. — हमें अपने दिन की सही योजना बनानी चाहिए। They maintain cleanliness everywhere. — वे हर जगह साफ़-सफाई रखते हैं। I am practicing pronunciation carefully. — मैं उच्चारण का सावधानी से अभ्यास कर रहा हूँ। She reads newspapers daily. — वह रोज़ अख़बार पढ़ती है। He understands concepts clearly. — वह अवधारणाओं को स्पष्ट रूप से समझता है। We should avoid procrastination. — हमें टालमटोल से बचना चाहिए। They reached a mutual decision. — वे आपसी निर्णय पर पहुँचे। I note down important points. — मैं महत्वपूर्ण बिंदु लिख लेता हूँ। She follows instructions sincerely. — वह निर्देशों का ईमानदारी से पालन करती है। He improves with consistent effort. — वह निरंतर प्रयास से सुधार करता है। We should trust the process. — हमें प्रक्रिया पर भरोसा रखना चाहिए। T...

Computer Science MCQs (Set–25 | 500-Level Research-Oriented Complexity 😈🔥)

241. If coNP ⊆ NP, then which major collapse follows? A) P = NP B) PH collapses to NP C) PSPACE = NP D) EXPTIME = NP Answer: B) PH collapses to NP 242. The language TRUE quantified Boolean formulas with k alternations is complete for: A) NP B) coNP C) Σₖ^P D) PSPACE Answer: C) Σₖ^P 243. Ladner’s Theorem states that if P ≠ NP, then: A) NP-Complete problems do not exist B) There exist NP-intermediate problems C) PH collapses D) PSPACE = NP Answer: B) There exist NP-intermediate problems 244. The class IP (Interactive Polynomial time) is equal to: A) NP B) coNP C) PSPACE D) EXPTIME Answer: C) PSPACE 245. Which of the following is known about NL and coNL? A) NL ≠ coNL B) NL ⊆ coNL C) NL = coNL D) Unknown Answer: C) NL = coNL 246. If NP = P, then which of the following becomes true? A) Every language in NP has polynomial-size circuits B) PH collapses to P C) NP = coNP D) All of the above Answer: D) All of the above 247. The problem of determining whether a Turing Machine accepts infin...

इतिहास के MCQ (भाग–17 | 161–170)

इतिहास MCQ 161. बंगाल विभाजन किस वर्ष हुआ था? A. 1903 B. 1905 C. 1907 D. 1911 उत्तर: B 162. बंगाल विभाजन के विरोध में किस आंदोलन की शुरुआत हुई? A. स्वदेशी आंदोलन B. असहयोग आंदोलन C. सविनय अवज्ञा आंदोलन D. भारत छोड़ो आंदोलन उत्तर: A 163. बंबई, मद्रास और कलकत्ता के विश्वविद्यालय कब स्थापित हुए? A. 1857 B. 1859 C. 1860 D. 1865 उत्तर: C 164. एल्फ्रेड ह्यूम किसके संबंध में प्रसिद्ध हैं? A. इंडियन नेशनल कांग्रेस के संस्थापक B. प्रेस अधिनियम के लेखक C. जलियाँवाला बाग हत्याकांड के अभियुक्त D. ब्रिटिश शिक्षा नीति के निर्माता उत्तर: A 165. स्वदेशी आंदोलन का प्रमुख हथियार क्या था? A. बंदूक B. अहिंसा C. बहिष्कार D. धमकी उत्तर: C 166. भारत छोड़ो आंदोलन कब शुरू हुआ था? A. 1940 B. 1942 C. 1944 D. 1946 उत्तर: B 167. गांधी जी ने असहयोग आंदोलन कब वापस लिया? A. 1920 B. 1921 C. 1922 D. 1923 उत्तर: C 168. चंपारण सत्याग्रह किस वर्ष हुआ? A. 1916 B. 1917 C. 1918 D. 1919 उत्तर: B 169. कांचीपुरम का ‘वेदांताचार्य’ किस भक्ति आंदोलन से संबंधित है? A. वैष्णव भक्ति B. सगुण भक्ति C. निर्गुण भक्ति D. जैन भक्ति...

Chemistry MCQs (Set–40)

Here are 🔬 Chemistry MCQs – Set 40 (Beyond Ultimate Level Chemistry Marathon 🔥🔥🔥🔥🔥) 391. The maximum number of electrons that can have n = 7 is: A) 49 B) 98 C) 32 D) 72 👉 Answer: B (Maximum electrons = 2n² = 2 × 7² = 98) 392. Which of the following has highest electronegativity? A) O B) F C) Cl D) N 👉 Answer: B 393. The number of σ-bonds in benzene is: A) 6 B) 9 C) 12 D) 15 👉 Answer: C 394. The pH of 1×10⁻⁹ M HCl solution is approximately: A) 9 B) 8 C) 7 D) Slightly less than 7 👉 Answer: D (Water contribution dominates; pH slightly < 7) 395. Which radical is most stable? A) Vinyl B) Methyl C) Benzyl D) Primary 👉 Answer: C 396. The bond order of N₂⁺ is: A) 3 B) 2.5 C) 2 D) 1.5 👉 Answer: B 397. The number of unpaired electrons in Co³⁺ (high spin, d⁶) is: A) 4 B) 3 C) 2 D) 1 👉 Answer: A 398. For a second-order reaction, if concentration is halved, rate becomes: A) Half B) One-fourth C) Double D) Same 👉 Answer: B 399. Which compound gives positive Tollen...

English Grammar MCQs – Set 55 (SSC / Banking / Railway | Expert Drill)

Choose the correct option 👇 Error Spotting (Q1–Q6) 1. One of the most respected leader of India is Mahatma Gandhi. (a) One of the most (b) respected leader (c) of India (d) is Mahatma Gandhi 2. He has been teaching here since seven months. (a) He has been teaching (b) here (c) since seven months (d) no error 3. Neither of the boys were willing to speak. (a) Neither (b) of the boys (c) were willing (d) to speak 4. She did not completed her assignment on time. (a) She did not (b) completed (c) her assignment (d) on time 5. The prices of essential goods have gone up sharply. (a) The prices (b) of essential goods (c) have gone up (d) sharply 6. No sooner had the meeting started when the chairman arrived. (a) No sooner had (b) the meeting started (c) when (d) the chairman arrived Sentence Improvement (Q7–Q11) 7. He is junior than his colleague in work. (a) junior to (b) junior from (c) junior than (d) no improvement 8. She prevented me to make a mistake. (a) prevented me from...

English to Hindi Sentences (Set-55)