MCQ
Copper sulphate solution reacts with $KCN$ to give
- A$Cu{(CN)_2}$
- B$CuCN$
- C${K_2}[Cu{(CN)_4}]$
- ✓${K_3}[Cu{(CN)_4}]$
✓
Answer
Correct option: D.
${K_3}[Cu{(CN)_4}]$
d
(d) $CuS{O_4} + 2KCN \to Cu{(CN)_2} + {K_2}S{O_4}$
(d) $CuS{O_4} + 2KCN \to Cu{(CN)_2} + {K_2}S{O_4}$
$2Cu{(CN)_2} \to C{u_2}{(CN)_2} + {(CN)_2}$
$C{u_2}{(CN)_2} + 6KCN \to 2{K_3}[Cu{(CN)_4}]$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The density of $2\, M\, MgBr_2$ solution is $1.2\, gm$ per $ml$. then molality of solution is ........ $m$.
→Which one of the following compounds is inactive towards $S _{ N } 1$ reaction?
→An enzyme which brings about the conversion of starch into maltose is known as
Which of following is not correct ?
The number of methoxy groups in a compound can be determined by treating it with
On electrolysis, $1\,mole$ of aluminium will be deposited from its molten salt by
→The following complexes are given :
→$(1)$ trans $-[Co(NH_3)_4 Cl_2]^+$
$(2)$ cis $-[Co(NH_3)_2 (en)_2]^{3+}$
$(3)$ trans $-[Co(NH_3)_2(en)_2]^{3+}$
$(4)$ $NiCl^{2-}_4$
$(5)$ $TiF^{2-}_6$
$(6)\, CoF^{3-}_6$
Choose the correct code
The rate of reaction $A + 2B \to 3C$ becomes $72\, times$ when concentration of $A$ is tripled and concentration of $B$ is doubled then the order of reaction with respect to $A$ and $B$ respectively is
→Identify the major product ?
When phenol reacts with ammonia in presence of $CuC{l_2}$ at $300\,^o C,$ it gives
→