Question

(ङ) निम्न में से कौन सी अभिक्रिया सम्भव नहीं है-
(i) CaO+H,» Ca+H2O
(ii) CuO+H, → Cu +H2O
(iii) Cu + 2Ag NO→ Cu (NO3)2 + 2 Ag
(iv) Fe + H2SO4 → FeSO4+H2​

Answer 1

Answer:

ii)Since copper is below hydrogen in the activity series so it cannot replace hydrogen.

So, reaction 2 is not possible

Explanation:

If it helps kindly mark it as brainliest giving five stars

Answer 2

Answer: iii

Explanation: because cu first show in only one oxidation no.