Q.

Statement-I: Lithium cannot react with EthyneStatement-II: Lithium cannot react with Nitrogen

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a

Both statements I and II are correct

b

Statement I is correct and statement II is incorrect

c

Statement I is incorrect and statement I is correct

d

Both statements I and II are incorrect

answer is B.

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Detailed Solution

Alkali metals are active metals. They react with active H-compounds like H2O , RCOOH, HCl, ROH and HC≡CH. Lithium cannot react with Ethyne to form ethynide .Lithium can react directly with carbon . No alkali metals except lithium can directly combine with N2­.  6Li +N2 →2Li3 N
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