COMEDK · Chemistry · 17. Solutions
In the following question a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below.
Assertion (A): van't Hoff factor for a solution of benzoic acid in benzene is less than one.
Reason(R): Benzoic acid undergoes dissociation in benzene and its calculated molecular mass using colligative properties is lower than its actual molecular mass.
- A Assertion (A) is correct but Reason (R) is incorrect
- B Assertion (A) and Reason (R) are correct
- C Both Assertion (A) and Reason (R) are incorrect
- D Assertion (A) and incorrect and Reason (R) is correct
Answer & Solution
Correct Answer
(A) Assertion (A) is correct but Reason (R) is incorrect
Step-by-step Solution
Detailed explanation
Benzoic acid (\(C_{6}H_{5}COOH\)) undergoes dimerization in non-polar solvents like benzene due to intermolecular hydrogen bonding. This association leads to a decrease in the number of particles in the solution. The van't Hoff factor \(i\) is defined as the ratio of observed…
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