Question

Match each entry in Column - I with only one entry from Column - II
for the given properties/applications mentioned therein:

$\begin{array}{cccc}& & & \\ & Column-I& & Column-II\\ \left(a\right)& H& \left(p\right)& Usedinthenameofperhydrol\\ \left(b\right)& H_2& \left(q\right)& CanbereducedtodihydrogenbyNaH\\ \left(c\right)& H_{2}O& \left(r\right)& Canbeusedinhydroformylationofolefin\\ \left(d\right)& H_2{O}_2& \left(s\right)& Canbeusedincuttingandwelding\end{array}$

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

Answer 1

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

Atomic hydrogen is used in cutting and welding.
In combination with a catalyst and $CO$, $H_2$ is used in hydroformylation
of alkenes. This could be thought of as the addition of a hydrogen and a formyl
group across the double bond.

Water reacts violently with $NaH$:
$H_{2}O+NaH⟶H_2\left(g\right)\uparrow +NaOH$

Water is reduced to dihydrogen in the above.
Perhydrol is a solution of hydrogen peroxide $H_2{O}_2$ at a concentration
of 30% of weight by volume(w/v) or 100 volume strength.