1.

Assertion: Li_(2)SO_(4) does not form double salt like alum Reason: Li reacts with NH_(3) gas to form LiNH_(2)

Answer»

If both ASSERTION and REASON are true and the reason is the CORRECT explanation of assertion
If both assertion and reason are true and the reason is not the correct explanation of assertion
If assertion is false but reason is true
If assertion is true but the reason is false

Solution :Among sulphate salt of alkali metals only `Li_(2)SO_(4)` does not forms alum, as `Li^(+)` has very small size.
`2LiI+NH_(3)(G) overset(Delta)(to)Li_(2)NH+H_(2)(uarr)


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