You visited us 1 times! Enjoying our articles? Unlock Full Access!

Coordination Complexes

Which of the ...

Question

Which of the following is formed when excess of KCN is added to aqueous solution of copper sulphate?

C u (C N)_{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

K_{2} [C u (C N)_{4}]

No worries! We‘ve got your back. Try BYJU‘S free classes today!

K [C u (C N)_{2}]

No worries! We‘ve got your back. Try BYJU‘S free classes today!

K_{3} [C u (C N)_{4}]

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $K_{3} [C u (C N)_{4}]$
The reaction between CuSO $_{4}$ and KCN is given as:
I. CuSO $_{4}$ +2KCN $\to$ Cu(CN) $_{2}$ + $K_{2} S O_{4}$
(cupric cyanide)
II. 2Cu(CN ) $_{2}$ $\to$ 2CuCN + (CN) $_{2}$
(cuprous cyanide)
III. CuCN +6 KCN $\to$ 2K $_{3}$ [Cu(CN) $_{4}$ ]
(excess)

Suggest Corrections

Similar questions

Which compound is formed when an excess of $K C N$ is added to an aqueous solution of copper sulphate?

K F

H F

K H F_{2}

K^{+}, F^{-}

H^{+}

K^{+}, F

H F

K^{+}

[H F_{2}]^{-}

[K H F]^{+}

F^{-}

K C N

C u (C N)_{2}

K_{2} [C u (C N)_{4}]

K [C u (C N)_{2}]

K_{3} [C u (C N)_{4}]

[C u (C N)_{4}]^{2 -}

H_{2} S

K C N

H_{2} S

Join BYJU'S Learning Program