A. 20 B. 32 C. 14 D. 12 Correct Answer: Option B - 32 Explanation Molecular mass = vapour density…
A. −100°C B. −273°C C. −373°C D. 0°C Correct Answer: Option B = −273°C Explanation Where −273°C = 0 K…
A. sp² hybridized B. sp³ hybridized C. sp4 hybridized D. sp hybridized Correct Answer: Option B - sp³ hybridized Explanation…
A. Fe³+ (H2O)6 B. FeO.H2O C. Fe2O3.3H2O D. Fe3O4.2H2O Correct Answer: Option C - Fe2O3.3H2O Explanation Iron [Fe] reacts with…
Cu2S(g) + O2(g) → 2Cu + SO2(g) A. 0 to + 2 B. 0 to + 1 C. + 1…
A. CnH2n B. CnH2n−2 C. CnH2n+1 D. CnH2n+2 Correct Answer: Option C - CnH2n+1 Explanation Alkyl group has the general…
A. amylase B. diastatse C. invertase D. zymase Correct Answer: Option A - amylase Explanation This is any amylase or…
A. oxidation reaction B. addition reaction C. hydrogenation reaction D. substitution reaction Correct Answer: Option D - substitution reaction Explanation…
A. NH3—C—C=O B. CHO C. CO D. CNH2 Correct Answer: Option A - NH3—C—C=O Explanation Xanthopreitic test for the presence…
A. 2–ethyl butane B. butane C. 2–methyl butane D. 2–methyl propane Correct Answer: Option C = 2–methyl butane Explanation C5H12…