Question

$SiC{l}_4$ on hydrolysis gives $X$ and $HCl$. Compound $X$ loses water at ${1000}^{0}C$ and gives $Y$. Compound $X$ and $Y$ are respectively:

• A. $H_{4}Si{O}_4$, $Si{O}_2$
• B. $H_{2}Si{O}_4$, $Si$
• C. $Si{O}_2$, $Si$
• D. none of above

Answer 1

Answer: (A)

$H_{4}Si{O}_4$, $Si{O}_2$

$SiC{l}_4$ on hydrolysis gives $H_{2}Si{O}_4$

$SiC{l}_4+4H_{2}O\to H_{2}Si{O}_3+4HCl$

$H_{4}Si{O}_4$ loses the water at 1000 degree centigrade and produces $Si{O}_2$

$H_{4}Si{O}_4\to Si{O}_2+2H_{2}O$

So, $X$ and $Y$ are $H_{4}Si{O}_4$ and $Si{O}_2$ respectively.

Hence option $A$ is correct.