KCET2024Chemistryp Block Elements (Group 15, 16, 17 & 18)
Which one of the following nitrate will decompose to give NO ₂ on heating ?
Options
- ANaNO ₃
- BKNO ₃
- CRbNO ₃
- 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 )