Published by:
CGP EDU Academic Team
Published on: August 13, 2026
In how many of the following reactions, colored precipitate is obtained ?
A
CuSO 4 + NaOH(excess) 
B
CuCl 2 + NH 3 (excess) 
C
ZnSO 4 + NaOH(excess) 
D
ZnSO 4 + NH 3 (excess) 
(e) FeSO 4 + NaOH(excess) 
(f) FeCl 3 + NaOH(excess) 
(g) CuSO 4 + KI (excess) 
(h) ZnSO 4 + NaHCO 3 (i) CuCl 2 + NaNO 3
(e) FeSO 4 + NaOH(excess) (f) FeCl 3 + NaOH(excess) (g) CuSO 4 + KI (excess) (h) ZnSO 4 + NaHCO 3 (i) CuCl 2 + NaNO 3
Text Solution
Verified by ExpertsThe correct answer is:
C
3
Sol. Cu(OH) 2 ↓ (blue ) [Cu(NH 3 ) 4 ] 2+ (aq.)
Na 2 [Zn(OH) 4 ] (aq) [Zn(NH 3 ) 4 ] 2+ (aq.)
(e) Fe(OH) 2 ↓ (greenish) (f) Fe(OH) 3 ↓ (reddish brown)
(g) CuI (white) (h) ZnCO 3 ↓ (white )
(i) Cu(NO 3 ) 2 ↓ (aq )
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