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 7

🔬 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) sp³
D) dsp²
👉 Answer: C) sp³

68. Which of the following is an example of a buffer solution?
A) HCl + NaCl
B) NaOH + NaCl
C) CH₃COOH + CH₃COONa
D) H₂SO₄ + Na₂SO₄
👉 Answer: C) CH₃COOH + CH₃COONa

69. The oxidation state of chromium in K₂Cr₂O₇ is:
A) +3
B) +4
C) +6
D) +7
👉 Answer: C) +6

70. Which of the following is an aromatic compound?
A) Cyclohexane
B) Benzene
C) Ethane
D) Propane
👉 Answer: B) Benzene

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