Fundamentholfundamenthol
NEET2022Chemistry
Q.

Match List-I with List-II.

List-IList-II
(a)Li(i)absorbent for carbon dioxide
(b)Na(ii)electrochemical cells
(c)KOH(iii)coolant in fast breeder reactors
(d)Cs(iv)photoelectric cell

Choose the correct answer from the options given below :

  1. A

    (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)

  2. B

    (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)

  3. C

    (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)

  4. D

    (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)

Solution

Identify each application based on a characteristic chemistry of the species.

Li is used in lightweight high-energy electrochemical cells, so (a) maps to (ii).

Na is a liquid metal coolant in fast breeder reactors because of its high thermal conductivity, so (b) maps to (iii).

KOH absorbs CO to form KCO, so (c) maps to (i).

Cs has the lowest ionisation enthalpy and is used in photoelectric cells, so (d) maps to (iv).

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