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–1)

 🔬 Chemistry MCQs

1. The atomic number of an element represents:
A) Number of neutrons
B) Number of protons
C) Number of electrons only
D) Sum of protons and neutrons
👉 Answer: B) Number of protons

2. The SI unit of pressure is:
A) Atmosphere
B) Bar
C) Pascal
D) mmHg
👉 Answer: C) Pascal

3. The gas used in the manufacture of ammonia in the Haber process is:
A) Oxygen
B) Nitrogen
C) Hydrogen
D) Nitrogen and Hydrogen
👉 Answer: D) Nitrogen and Hydrogen

4. Which of the following is an alkali metal?
A) Calcium
B) Sodium
C) Magnesium
D) Aluminium
👉 Answer: B) Sodium

5. The pH value of a neutral solution at 25°C is:
A) 0
B) 14
C) 7
D) 1
👉 Answer: C) 7

6. Who proposed the atomic theory in 1808?
A) J.J. Thomson
B) John Dalton
C) Ernest Rutherford
D) Niels Bohr
👉 Answer: B) John Dalton

7. The chemical formula of washing soda is:
A) NaCl
B) Na2CO3·10H2O
C) NaHCO3
D) CaCO3
👉 Answer: B) Na2CO3·10H2O

8. Which type of bond is formed by sharing of electrons?
A) Ionic bond
B) Covalent bond
C) Metallic bond
D) Hydrogen bond
👉 Answer: B) Covalent bond

9. The main ore of aluminium is:
A) Hematite
B) Bauxite
C) Magnetite
D) Galena
👉 Answer: B) Bauxite

10. The element present in all organic compounds is:
A) Oxygen
B) Hydrogen
C) Carbon
D) Nitrogen
👉 Answer: C) Carbon

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