Question

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

	X	Y	Z
(a)	$N{a}_{2}Si{O}_3$	$Si{F}_4$	$(C{H}_3{)}_{2}SiC{l}_2$
(b)	$H_{2}Si{O}_3$	$Si{F}_2$	$C{H}_{3}SiC{l}_3$
(c)	$N{a}_{2}Si{O}_3$	$H_{2}Si{O}_3$	$(CH{)}_3{)}_{3}SiCl$
(d)	$N{a}_{2}Si{O}_3$	$H_{2}Si{F}_4$	$(CH{)}_3{)}_{2}SiC{l}_2$

• A. a
• B. b
• C. c
• D. d

Answer 1

Answer: (A)

$Si{O}_2+2NaOH\to \underset{(X)}{N{a}_{2}Si{O}_3}+H_{2}O$
$Si{O}_2+4HF\to \underset{(Y)}{2H_{2}O}$
$Si+2C{H}_{3}Cl\underset{570K}{\overset{\text{ cu powder }}{\to }}\underset{(Z)}{{\left(C{H}_3\right)}_{2}SiC{l}_2}$