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JEE Main2016Chemistryp Block Elements (Group 15, 16, 17 & 18)Actual

The reaction of zinc with dilute and concentrated nitric acid, respectively, produces:

Options

  1. AN O a n d N 2 O
  2. BN O 2 a n d N 2 O
  3. CN 2 O a n d N O 2
  4. DN O 2 a n d N O

Correct answer

C. N 2 O a n d N O 2

Step-by-step solution

Zn on reaction with H N O 3 4 Z n + 10 H N O 3 → 4 Z n N O 3 2 + N 2 O + 5 H 2 O   (Dil.) Z n + 4 H N O 3 → Z n N O 3 2 + 2 N O 2 + 2 H 2 O (Conc.)

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