Chemistry MCQS

331. Among the following, which is least soluble in water?
A. Carboxylic acid
B. Ethanol
C. Phenol
D. Benzene

332. A metal has an electronic configuration is M+2 has 2,8,14 and its atomic weight is 56. The number of neutrons is?
A. 32
B. 33
C. 34
D. 36

333. Among the following nonmetals which is extremely hard?
A. Iodine
B. Diamond
C. Phosphorous
D. Graphite

334. In a soft drink, the solvent is?
A. Water
B. Milk
C. Oil
D. Benzene

335. One atmospheric pressure is equal to how many pascals?
A. 106075
B. 10523
C. 10325
D. 101325

336. _ consists of four sub-shells.
A. L shell
B. M shell
C. N shell
D. K shell

337. Which of the following cannot be a Bronsted acid:
A. HCO₃⁻
B. HCOO
C. H₂PO₃
D. H₃O⁺

338. Conjugate acid of amide ion is:
A. N⁺H₄
B. NH₃
C. N⁺H₂
D. NH₂⁻

339. Which of the following compounds is not a protonic acid:
A. H₂SO₄
B. H₃BO₃
C. H₃PO₄
D. H₂SO₃

340. Which of the following is tribasic acid:
A. H₃SO₃
B. H₃PO₂
C. H₃PO₄
D. CH₃COOH