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  • The incorrect statement is-Option: 1 is the stronge

The incorrect statement is-

Option: 1

\mathrm{Li} is the strongest reducing agent among the alkali metals.


Option: 2

\mathrm{Li} is least reactive with water among the alkali metals.


Option: 3

\mathrm{LiNO_{3}} decomposes on heating to give \mathrm{LiNO_{2}\: and\: O_{2}}


Option: 4

\mathrm{LiCl} crystallise from aqueous solution as \mathrm{LiCl.2H_{2}O}


Answers (1)

best_answer

\mathrm{\mathrm{LiNO}_3} (lithium nitrate) on heating gives a mixture of \mathrm{\mathrm{Li}_2 \mathrm{O}, \mathrm{NO}_2 \: and\: \mathrm{O}_2}

\mathrm{ 4 \mathrm{LiNO}_3 \longrightarrow 2 \mathrm{Li}_2 \mathrm{O}+4 \mathrm{NO}_2 \uparrow+\mathrm{O}_2 \uparrow }

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

Hence option 3 is correct.

Posted by

Kuldeep Maurya

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