PYQ Vault
EbooksTutor

Van't Hoff factor and degree of dissociation of a salt from its formula

This type of question, asked 4 times: 10 Apr 2023, 24 Jan 2025, 29 Jan 2025, 7 Apr 2025. All 4 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    10 Apr 2023

    57
    If the degree of dissociation of aqueous solution of weak monobasic acid is determined to be 0.3 , then the observed depression in freezing point will be ___ %\% higher than the expected/theoretical depression in freezing point. (Nearest integer)

  2. Question 2

    24 Jan 2025

    121
    The observed and normal masses of compound MX2MX_{2} are 65.6 and 164 respectively. The percent degree of ionisation of MX2MX_{2} is _____\_\_\_\_\_ %. (Nearest integer)

  3. Question 3

    29 Jan 2025

    49
    If A2 BA_{2}\text{ }B is 30%30\% ionised in an aqueous solution, then the value of van't Hoff factor (i) is _____\_\_\_\_\_ ×10−1\times10^{- 1}.

  4. Question 4

    7 Apr 2025

    49
    The percentage dissociation of a salt (MX3)\left( {MX}_{3} \right) solution at given temperature (van't Hoff factor i = 2) is ____ % (Nearest integer)