Solutions -Very Short Questions and Answers Q1: What is Van’t Hoff factor ? Answer: It is the ratio of normal Molecular Mass to observed molecular mass. It is denoted as i. i = normal molecular mass/observed molecular mass  = no. of particles after association or dissociation/no. of particles before Q2: What is the Van’t Hoff factor in K₄[Fe(CN)₆] and BaCl₂ ? Answer: 5 and 3 Q3: