Question

Compele the following reactions:
(i) $Si{O}_2+2NaOH\to X+H_{2}O$
(ii) $Si{O}_2+4HF\to Y+2H_{2}O$
(iii) $Si+2C{H}_{3}Cl\underset{570K}{\overset{Cupowder}{\to }}Z$ ?

• A. $X-N{a}_{2}Si{O}_3,Y-Si{F}_4,Z-(C{H}_3{)}_{2}SiC{l}_2$
• B. $X-H_{2}Si{O}_3,Y-Si{F}_2,Z-C{H}_{3}SiC{l}_3$
• C. $X-N{a}_{2}Si{O}_3,Y-H_{2}Si{O}_3,Z-(C{H}_3{)}_{3}SiCl$
• D. $X-N{a}_{2}Si{O}_3,Y-H_{2}Si{F}_4,Z-(C{H}_3{)}_{2}SiC{l}_2$

Answer 1

Answer: (A)

$X-N{a}_{2}Si{O}_3,Y-Si{F}_4,Z-(C{H}_3{)}_{2}SiC{l}_2$

Answer:-

Silicon dioxide react with sodium hydroxide to produce sodium silicate and water. This reaction takes place at a temperature of 900-1000°C.

$Si{O}_2+2NaOH\stackrel{900-1000°C}{\to }{Na}_{2}Si{O}_3+H_{2}O$

Thus, X is ${Na}_{2}Si{O}_3$.

Silicon dioxide react with hydrogen fluoride to produce silicon tetrafluoride and water.

$Si{O}_2+\underset{Dil.sol.}{4HF}⟶Si{F}_4+2H_{2}O$

Thus, Y is $Si{F}_4$.

Silicon react with chloromethane to produce dimethyldichlorosilane.

$Si+2C{H}_{3}Cl\underset{570K}{\overset{Cupowder}{\to }}{\left(CH3\right)}_{2}Si{Cl}_2$

Thus, Z is ${\left(C{H}_3\right)}_{2}Si{Cl}_2$