0.6 mL of acetic acid (CH 3 COOH), having density 1.06 g mL –1 , is dissolved in 1 litre of water. The depression in freezing point observed for this strength of acid was 0.0205°C. What are the van’t Hoff factor and the dissociation constant of acid?

Options

1. AVant Hoff factor is 0.098 and Dissociation constant of acid is 3.54× 10 –5
2. BVant Hoff factor is 0.098 and Dissociation constant of acid is 1.86 × 10 –5
3. CVant Hoff factor is 1.041 and Dissociation constant of acid is 3.54 × 10 –5
4. DVant Hoff factor is 1.041 and Dissociation constant of acid is 1.86 × 10 –5