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KCET2024Chemistryp Block Elements (Group 15, 16, 17 & 18)

Which one of the following nitrate will decompose to give NO ₂ on heating ?

Options

  1. ANaNO ₃
  2. BKNO ₃
  3. CRbNO ₃
  4. DLiNO ₃

Correct answer

D. LiNO ₃

Step-by-step solution

Among the given nitrates, only LiNO ₃ will give NO ₂ on heating. While all other nitrates will give oxygen. i.e. LiNO ₃ 2 Li ₂ O +4 NO ₂+ O ₂2 MNO ₃ 2 MNO ₂+ O ₂ (where, M= Na , K , Rb )

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