WBCS Main Chemistry Questions and Answers (Previous Year Paper)
WBCS Main Chemistry Question Paper – 2023 1. The degrees of freedom of H ₂ molecule is (A) 2(B) 3(C) 5(D) 6 2. World’s 1 st medicine from marijuana is named as (A) Malarone(B) Effexor(C) Absinthium(D) Epidolex 3. These days HFC is replaced by which gas in refrigerator ? (A) Toluene(B) Butane(C) Isobutane(D) Nitrobenzene 4….