JEE Main 2015 · 11 Apr · Shift 1 · Chemistry Q36

ChemistrySingle correct+4 / -1Question 36 of 90

Determination of the molar mass of acetic acid in benzene using freezing point depression is affected by :

dissociation

association

partial ionization

complex formation

Answer and worked solution

Official answer: B

Acetic acid dimerises through hydrogen bonds in benzene, so the observed molar mass comes out about double: association.

JEE Main 2015 · 11 Apr · Shift 1, Chemistry question 36