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–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) Ethanol
D) Water

👉 Answer: B

430. The geometry of IF₅ is:
A) Square pyramidal
B) Octahedral
C) Trigonal bipyramidal
D) Tetrahedral

👉 Answer: A

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