Question

Consider the reaction, $SiC{l}_4+4H_{2}O\to X+4HCl$. On heating $X$ upto ${1000}^{\circ }C$, $Y$ is obtained. $Y$ on treating with $HF$, the final product obtained is:

• A. $H_{2}Si{O}_3$
• B. $H_{4}Si{O}_4$
• C. $Si{F}_4$
• D. $H_{2}Si{F}_6$

Answer 1

The correct option is C $Si{F}_4$

$SiC{l}_4+4H_{2}O\to Si(OH{)}_4+4HCl$ therefore X will be $Si(OH{)}_4$
$Si(OH{)}_4\to Si{O}_2+2H_{2}O$
$Si{O}_2+4HF\to Si{F}_4+2H_{2}O$
The final product obtained is $Si{F}_4$