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Chemistry

From NH3, HCl, H2S, SO2 – Select :

(i) The gas which when bubbled through CuSO4 soln., a deep blue coloured soln. is formed.

(ii) This gas burns in oxygen with a green flame.

Ammonia

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Answer

(i) Ammonia (NH3)

CuSO4 + 2NH4OH [ammonia soln.]⟶ (NH4)2SO4 + Cu(OH)2
Cu(OH)2 + (NH4)2SO4 + 2NH4OH ⟶ [Cu(NH3)4]SO4 + 4H2O

(ii) Ammonia (NH3)

4NH3 + 3O2 ⟶ 2N2 + 6H2O

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