Computer Science MCQs (Set–29 | Level — Frontier Open Conjectures & Deep Structural Theory 😈🔥)

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 ...
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Chemistry MCQs – Set 5

🔬 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 solution is:
A) Less than 7
B) Equal to 7
C) Greater than 7
D) Equal to 0
👉 Answer: C) Greater than 7

49. Which of the following is a thermoplastic polymer?
A) Bakelite
B) PVC
C) Melamine
D) Urea-formaldehyde
👉 Answer: B) PVC

50. The number of electrons in a neutral atom of chlorine (Atomic number 17) is:
A) 15
B) 16
C) 17
D) 18
👉 Answer: C) 17

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