JEE MAIN - Chemistry (2022 - 28th July Morning Shift - No. 5)
Match List - I with List - II, match the gas evolved during each reaction.
| List - I | List - II | ||
|---|---|---|---|
| (A) | $$\left(\mathrm{NH}_{4}\right)_{2} \mathrm{Cr}_{2} \mathrm{O}_{7} \stackrel{\Delta}{\longrightarrow}$$ | (I) | $$\mathrm{H}_{2}$$ |
| (B) | $$\mathrm{KMnO}_{4}+\mathrm{HCl} \rightarrow$$ | (II) | $$\mathrm{N}_{2}$$ |
| (C) | $$\mathrm{Al}+\mathrm{NaOH}+\mathrm{H}_{2} \mathrm{O} \rightarrow$$ | (III) | $$\mathrm{O}_{2}$$ |
| (D) | $$\mathrm{NaNO}_{3} \stackrel{\Delta}{\longrightarrow}$$ | (IV) | $$\mathrm{Cl}_{2}$$ |
Choose the correct answer from the options given below :
$$(\mathrm{A})-(\mathrm{II}),(\mathrm{B})-(\mathrm{III}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{IV})$$
$$(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{I}),(\mathrm{C})-(\mathrm{IV}),(\mathrm{D})-(\mathrm{II})$$
$$(\mathrm{A})-(\mathrm{II}),(\mathrm{B})-(\mathrm{IV}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{III})$$
$$(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{IV}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{II})$$
Explanation
$\left(\mathrm{NH}_{4}\right)_{2} \mathrm{Cr}_{2} \mathrm{O}_{7} \stackrel{\Delta}{\longrightarrow} \mathrm{N}_{2}+4 \mathrm{H}_{2} \mathrm{O}+\mathrm{Cr}_{2} \mathrm{O}_{3}$
$\mathrm{KMnO}_{4}+\mathrm{HCl} \longrightarrow \mathrm{KCl}+\mathrm{MnCl}_{2}+\mathrm{Cl}_{2}+\mathrm{H}_{2} \mathrm{O}$
$\mathrm{Al}+\mathrm{NaOH}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{Na}\left(\mathrm{Al}(\mathrm{OH})_{4}\right)+\mathrm{H}_{2}$
$2 \mathrm{NaNO}_{3}(\mathrm{~s}) \stackrel{\Delta}{\longrightarrow} 2 \mathrm{NaNO}_{2}(\mathrm{~s})+\mathrm{O}_{2}$
$\mathrm{KMnO}_{4}+\mathrm{HCl} \longrightarrow \mathrm{KCl}+\mathrm{MnCl}_{2}+\mathrm{Cl}_{2}+\mathrm{H}_{2} \mathrm{O}$
$\mathrm{Al}+\mathrm{NaOH}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{Na}\left(\mathrm{Al}(\mathrm{OH})_{4}\right)+\mathrm{H}_{2}$
$2 \mathrm{NaNO}_{3}(\mathrm{~s}) \stackrel{\Delta}{\longrightarrow} 2 \mathrm{NaNO}_{2}(\mathrm{~s})+\mathrm{O}_{2}$
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