Question

Match the terms in Column - I with the relevant item in Column - II
$\begin{array}{cccc}& & & \\ & Column-I& & Column-II\\ \left(a\right)& Electrolysisofwaterproduces& \left(p\right)& Atomicreactor\\ \left(b\right)& Lithiumaluminiumhydrideisusedas& \left(q\right)& Polarmolecule\\ \left(c\right)& Hydrogenchlorideisa& \left(r\right)& Combinesonmetalsurfacetogeneratehightemperature\\ \left(d\right)& Heavywaterisusedin& \left(s\right)& Reducingagent\\ \left(e\right)& Atomichydrogen& \left(t\right)& Hydrogenandoxygen\end{array}$

• A. (a) $\to$ (s, t); (b) $\to$ (s); (c) $\to$ (q); (d) $\to$ (p); (e) $\to$ (r, s)
• B. (a) $\to$ (s, t); (b) $\to$ (p); (c) $\to$ (q); (d) $\to$ (s); (e) $\to$ (r, s)
• C. (a) $\to$ (r, s); (b) $\to$ (s); (c) $\to$ (q); (d) $\to$ (p); (e) $\to$ (s, t)
• D. (a) $\to$ (q); (b) $\to$ (s); (c) $\to$ (s, t); (d) $\to$ (p); (e) $\to$ (r, s)

Answer 1

The correct option is A (a) $\to$ (s, t); (b) $\to$ (s); (c) $\to$ (q); (d) $\to$ (p); (e) $\to$ (r, s)

Electrolysis of water produces $H_2\left(g\right)$ and $O_2\left(g\right)$. Of these two,
dihydrogen is a well known reducing agent. $LiAl{H}_4$ is a popular reducing agent.
$HCl\left(g\right)$ is a polar molecule. Heavy water is used in nuclear reactors.
Atomic hydrogen combines on metal surface in a highly exothermic reaction.
It is also a very powerful reducing agent (much more reducing than $H_2\left(g\right)$.