Redox Reactions · Chemistry · TS EAMCET
MCQ (Single Correct Answer)
$\mathrm{C}+$ Conc. $\mathrm{H}_{2} \mathrm{SO}_{4} \xrightarrow{\Delta} X+Y+\mathrm{H}_{2} \mathrm{O}$
$X$ and $Y$ in the above reaction are
Observe the following reaction,
$ 2 \mathrm{KClO}_{3}(s) \xrightarrow{\Delta} 2 \mathrm{KCl}(\mathrm{~s})+3 \mathrm{O}_{2}(\mathrm{~g}) $
In this reaction
Match the following.
| List.l (Substance) | List II (Equivalent weight) |
| A $\mathrm{Na}_2 \mathrm{CO}_3$ | I. $\frac{M}{5}$ |
| B $\mathrm{KMnO}_4 / \mathrm{H}^{+}$ | II. $\frac{M}{3}$ |
| C $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7 / \mathrm{H}^{+}$ | III. $\frac{M}{2}$ |
| D $\mathrm{KMnO}_4 / \mathrm{H}_2 \mathrm{O}$ | IV. $\frac{M}{6}$ |
( $M=$ Formula weight)
The correct answer is
Observe the following reactions.
$$ \begin{aligned} & \text { I. } \mathrm{H}_2 \mathrm{O}(l)+2 \mathrm{Na}(s) \longrightarrow 2 \mathrm{NaOH}(a q)+\mathrm{H}_2(g) \\\\ & \text { II. } 2 \mathrm{H}_2 \mathrm{O}(l)+2 \mathrm{~F}_2(g) \longrightarrow 4 \mathrm{H}^{+}(a q)+4 \mathrm{~F}^{-}(a q)+\mathrm{O}_2(g) \end{aligned} $$
Which of the following is only a redox reaction but not a disproportionation reaction?