Identify the enzyme $X$ in the following reaction

$\mathrm{H}_2 \mathrm{O}_2(\mathrm{aq}) \xrightarrow{x} \mathrm{H}_2 \mathrm{O}(l)+\frac{1}{2} \mathrm{O}_2(g)$

The Total number of electrons around the carbon atom of methyl free radical are

Identify tranquiliser from the following?

Which reagent among the following is used to confirm presence of aldehydic carbonyl group in glucose?