Question

Choose the correct set of options matching appropriate properties of column-I with column-II $\begin{array}{cccc}& \text{Column-I}& & \text{Column-II}\\ \left(a\right)& Xe{F}_4+H_{2}O\left(l\right)⟶& \left(p\right)& \text{Shows disproportionation reaction}\\ \left(b\right)& P_4\left(s\right)+O{H}^{-}\left(aq\right)+H_{2}O\left(l\right)⟶& \left(q\right)& \text{One of the products is a monobasic Lewis acid}\\ \left(c\right)& B_2{H}_6+H_{2}O\left(l\right)⟶& \left(r\right)& \text{One/two of the products is/are gas(es)}\\ \left(d\right)& B{r}_2\left(g\right)+K_{2}C{O}_3\left(aq\right)⟶& \left(s\right)& \text{One of the product has trigonal pyramidal structure}\\ & & \left(t\right)& \text{One of the gaseous product is used as Holme's signal in sea}\end{array}$

• A. (a) – (p, q); (b) – (q, r, t ); (c) – (q, s, r); (d) – (p, q, t)
• B. (a) – (p, r, s); (b) – (p, r, s, t ); (c) – (q, r); (d) – (p, r, s)
• C. (a) – (q, t); (b) – (p, t ); (c) – (p, q, s); (d) – (q, r, t)
• D. (a) – (r, t); (b) – (r, s, t ); (c) – (p, q, r); (d) – (p, r, t)

Answer 1

The correct option is B (a) – (p, r, s); (b) – (p, r, s, t ); (c) – (q, r); (d) – (p, r, s)

The following all show disproportionation:

$Xe{F}_4+H_{2}O\left(l\right)⟶Xe{O}_3+Xe+HF+O_2$

$P_4\left(s\right)+3O{H}^{-}\left(aq\right)+3H_{2}O\left(l\right)⟶P{H}_3+3Na{H}_{2}P{O}_2$

$B{r}_2\left(g\right)+K_{2}C{O}_3\left(aq\right)⟶KBr+KBr{O}_3+C{O}_2$

This reaction, does not exhibit disproportionation:
$B_2{H}_6+H_{2}O\left(l\right)⟶H_{3}B{O}_3+H_2$