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Chemistry
Which of the following observations/statements is/are correct?
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Q. Which of the following observations/statements is/are correct?
Coordination Compounds
A
Anhydrous $CuSO_{4}$ becomes blue in aqueous medium due to the complex formation
46%
B
$Ni(CN)_{2}$ dissolves in $KCN$ giving an orange-red solution
20%
C
$Fe(OH)_{3}$ can be precipitated by adding $NH_{4}OH$ to $K_{3}[FeCCN),_{6}]$
13%
D
None of the above
20%
Solution:
Anhydrous $CuSO_4$ become blue in aqueous medium due to the complex formation.
$CuSO_{4} + 4NH_{3} \to [Cu (NH_{3})_{4}]^{+2}$