Q.
Which of the following observations/statements is/are correct?
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a
Anhydrous CuSO4 becomes blue in aqueous medium due to the complex formation
b
Ni(CN)2 dissolves in KCN giving an orange-red solution
c
Fe(OH)3 can be precipitated by adding NH4OH to K3[Fe(CN)6]
d
None of the above
answer is A.
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Detailed Solution
Anhydrous CuSO4 become blue in aqueous medium due to the complex formation.CuSO4+4NH3→CuNH34+2
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