JEE Main · 2023 · Shift-IIeasySOL-088

Match List I with List II. | List I | | List II | |---|---|---| | A. van't Hoff factor, i | | I. Cryoscopic constant |…

Solutions · Class 12 · JEE Main Previous Year Question

Question

Match List I with List II.

| List I | | List II | |---|---|---| | A. van't Hoff factor, i | | I. Cryoscopic constant | | B. kfk_f | | II. Isotonic solutions | | C. Solutions with same osmotic pressure | | III. Normal molar massAbnormal molar mass\frac{\text{Normal molar mass}}{\text{Abnormal molar mass}} | | D. Azeotropes | | IV. Solutions with same composition of vapour above it |

Choose the correct answer from the options given below:

Options
  1. a

    A-III, B-I, C-II, D-IV

  2. b

    A-III, B-II, C-I, D-IV

  3. c

    A-III, B-I, C-IV, D-II

  4. d

    A-I, B-III, C-II, D-IV

Correct Answera

A-III, B-I, C-II, D-IV

Detailed Solution

Strategy:\n> Match core colligative property definitions and solution behaviors with their standard terminology and formulas.\n\nMatching Breakdown:\n- A. van't Hoff factor (i): A measure of dissociation or association, defined as the ratio of observed (abnormal) properties to calculated (normal) ones, but for molar mass, it is fractextNormalmolarmasstextAbnormalmolarmass\\frac{\\text{Normal molar mass}}{\\text{Abnormal molar mass}}. \rightarrow III\n- B. kfk_f: Also known as the Cryosco\pic constant, it describes the depression of freezing point per 1 molal concentration. \rightarrow I\n- C. Isotonic solutions: These are solutions having the same osmotic pressure. \rightarrow II\n- D. Azeotropes: Constant boiling mixtures where the liquid and vapour phases have the same composition. \rightarrow IV\n\nConclusion: A-III, B-I, C-II, D-IV.\n\ntextAnswer:(1)\boxed{\\text{Answer: (1)}}

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