Question

Match the following

	Column I		Column II
A	$B{i}^{3+}\to \left[Bi\right(OH{)}_2{]}^{+}$	p	Heating
B	$[Al{O}_2{]}^{-}\to Al(OH{)}_3$	q	Hydrolysis
C	$Si{O}_4^{4-}\to S{i}_2{O}_7^{6-}$	r	Acidification
D	$\left(B_4{O}_7^{2-}\right)\to \left[B\right(OH{)}_3]$	s	Dilution by water

• A. $A\to s$; $B\to r$; $C\to p$; $D\to q$
• B. $A\to q$; $B\to q,s$; $C\to p$; $D\to r$
• C. $A\to q$; $B\to r$; $C\to p$; $D\to q,r$
• D. $A\to q$; $B\to r$; $C\to p$; $D\to q$

Answer 1

Answer: (C)

$A\to q$; $B\to r$; $C\to p$; $D\to q,r$

The reaction $B{i}^3\to \left[Bi\right(OH{)}_2{]}^{+}$ represents hydrolysis reaction. Bismuth ion is hydrolyzed.

The reaction $[Al{O}_2{]}^{-}\to Al(OH{)}_3$ is an example of acidification reaction.

The reaction $Si{O}_4^{4-}\to S{i}_2{O}_7^{6-}$ is carried out by heating.

The reaction $\left(B_4{O}_7^{2-}\right)\to \left[B\right(OH{)}_3]$ represents hydrolysis and is carried out by acidification.