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–37)

 Here are🔬Chemistry MCQs – Set 37 (Mythical Grand Ultimate Level 🔥🔥🔥🔥🔥)

361. The maximum number of electrons that can have n = 6 is:

A) 36
B) 72
C) 18
D) 32
👉 Answer: B
(Maximum electrons = 2n² = 2 × 6² = 72)

362. Which of the following has highest ionization enthalpy?
A) Be
B) B
C) C
D) N
👉 Answer: D

363. The number of π-bonds in phenanthrene is:
A) 6
B) 7
C) 8
D) 9
👉 Answer: B

364. The pH of 1×10⁻⁵ M HCl solution is approximately:
A) 5
B) 4.5
C) 4
D) 3
👉 Answer: A
(Considering water contribution slightly lowers pH but ≈5)

365. Which carbocation is most stabilized by resonance?
A) Allyl
B) Benzyl
C) Vinyl
D) Tertiary

👉 Answer: B

366. The bond order of CN⁻ is:
A) 2
B) 2.5
C) 3
D) 1

👉 Answer: C

367. The number of unpaired electrons in Cr³⁺ (d³) is:
A) 1
B) 2
C) 3
D) 4

👉 Answer: C

368. For a first-order reaction, 50% reaction occurs in 30 min. Time for 87.5% reaction is:
A) 60 min
B) 90 min
C) 120 min
D) 150 min

👉 Answer: B
(3 half-lives → 90 min)

369. Which compound is strongest acid?
A) Trichloroacetic acid
B) Acetic acid
C) Formic acid
D) Phenol

👉 Answer: A

370. The geometry of SF₆ is:
A) Octahedral
B) Trigonal bipyramidal
C) Tetrahedral
D) Square planar

👉 Answer: A

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