JEE Main · 2022 · 28 Jul 2022 · Shift 1 · Practical and Analytical Chemistry

Match List-I with List-II, match the gas evolved during each reaction.

Answer: A → II, B → IV, C → I, D → III

Solution

Reaction (A): Ammonium dichromate decomposes on heating to give

N_{2}

gas (II). Reaction (B):

KMnO_{4}

reacts with HCl to liberate

Cl_{2}

gas (IV). Reaction (C): Aluminum reacts with NaOH and water to produce

H_{2}

gas (I). Reaction (D): Sodium nitrate decomposes on heating to give

O_{2}

gas (III). The correct pairing is (A)-(II), (B)-(IV), (C)-(I), (D)-(III).

JEE Main · 2022 · 28 Jul 2022 · Shift 1 · Match the columns

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