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In how many of the following reactions, colored precipitate is obtained? (a). CuSO_(4)+NaoH("excess")to, (b) CuCl_(2)+NH_(3)("excess")to ltBrgt (c) ZnSO_(4)+NaOH("excess")to (d) ZnSO_(4)+NH_(3)("excess")to , (e) FeSO_(4)+NaOH("excess")underset(air)overset("in")to , (f) FeCl_(3)+NaoH("Excess")to (g) CuSO_(4)+Kl("excess")to, (h) ZnSO_(4)+NaHCO_(3)to (i) CuCl_(2)+NaNO_(3)to |
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Answer» (b) `[Cu(NH_(3))_(4)]^(2+)(aq.)` (c). `Na_(2)[ZN(OH)_(4)](aq.)` (d). `[Zn(NH_(3))_(4)]^(2+)(aq.)` (e) `Fe(OH)_(2)darr("greenish")` (f) `Fe(OH)_(3)darr("reddish brown")` (g) CUL (white) (H) `ZnCO_(3)darr ("white")` (i) `Cu(NO_(3))_(2)darr(aq.)` |
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