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NTA Abhyas JEE Main2020Chemistryp Block Elements (Group 15, 16, 17 & 18)Practice

Calcium imide on hydrolysis gives gas B which on oxidation by bleaching powder gives gas C. Gas C on reaction with magnesium give compound D which on hydrolysis gives again gas B. Identify B, C and D respectively.

Options

  1. AN H 3 , N 2 , M g 3 N 2
  2. BN 2 , N H 3 , M g N H
  3. CN 2 , N 2 O 5 , M g ( N O 3 ) 2
  4. DN H 3 , N O 2 , M g ( N O 2 ) 2

Correct answer

A. N H 3 , N 2 , M g 3 N 2

Step-by-step solution

Here B, C and D are N H 3 , N 2 and M g 3 N 2 respectively C a NH + 2 H 2 O → C a OH 2 + N H 3 ( g ) ( B ) 2 N H 3 ( B ) + 3 C a O C l 2 → N 2 ( g ) ( C ) + 3 C a C l 2 + 3 H 2 O N 2 ( g ) ( C ) + 3 M g → M g 3 N 2 ( D ) M g 3 N 2 ( D ) + 6 H 2 O → 3 M g OH 2 + 2 N H 3 ( B )

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