Question

A tin chloride Q undergoes the following reactions (not balanced) $Q+Cl^{-} \to X$ $Q+Me_{3}N \to Y$ $Q+CuCl_{2} \to Z+CuCl$ X is a monoanion having pyramidal geometry. Both Y and Z are neutral compounds. Choose the correct option(s)

• A. The central atom in $X$ is $sp^3$ hybridized
• B. There is a coordinate bond in Y
• C. The oxidation state of the central atom in $Z$ is $+2$
• D. The central atom in Z has one lone pair of electrons

Answer 1

Answer: (B)

There is a coordinate bond in Y

Answer 2

Compound Q is $SnCl_2$. The given reactions are
{ \underset{\text{}}{{SnCl2}}$+ Cl- ->$\underset{\text{(X)}}{{SnCl^{-}_3}} }
{ \underset{\text{}}{{SnCl2}}$+ Me3N ->$\underset{\text{(Y)}}{{Me3N+ - Sn^{-}Cl2}} }
{ \underset{\text{}}{{SnCl2}}$+ 2CuCl2 ->$\underset{\text{(Z)}}{{SnCl4 + 2CuCl}} }
Hybridisation of Sn in $SnCl^{-}_{3}$ is $sp^3$
Trimethylamine forms a co-ordinate bond with Sn in $SnCl_2$.
There is no lone pair on central atom of $SnCl_4(Z)$.