Question

The given reaction can occur in the presence of :
(a) Bromine water
(b) $B{r}_2$ in $C{S}_2,273K$
(c) $B{r}_2/FeB{r}_3$
(d) $B{r}_2$ in $CHC{l}_3,273K$
Choose the correct answer from the options givenbelow

• A. (b) and (d) only
• B. (a) and (c) only
• C. (b), (c) and (d) only
• D. (a), (b) and (d) only

Answer 1

Answer: (C)

The main reasons are :
(i) six large chloride ions cannot be accommodated around $S{i}^{4+}$ due to limitation of its size.
(ii) interaction between lone pair of chloride ion and $S{i}^{4+}$ is not very strong.
The species like, $Si{F}_6{}^{2-},{\left[GeC{l}_6\right]}^{2-},{\left[Sn(OH{)}_6\right]}^{2-}$ exist where the hybridisation of the central atom is $s{p}^3{d}^2$.