sblock Elements - Result Question 2

####2. The incorrect statement is

(2019 Main, 12 April II)

(a) lithium is the strongest reducing agent among the alkali metals.

(b) lithium is least reactive with water among the alkali metals.

(c) LiNO3 decomposes on heating to give LiNO2 and O2.

(d) LiCl crystallise from aqueous solution as LiCl2H2O.

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Answer:

Correct Answer: 2. (b)

Solution:

  1. Statement (c) is incorrect. LiNO3 (Lithium nitrate) on heating gives a mixture of Li2O,NO2 and O2.

4LiNO3Δ2Li2O+4NO2+O2

Among the alkali metals, lithium is the strongest reducing agent.



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