Among the gases: ammonia, chlorine, hydrogen chloride and sulphur dioxide
Select the gas that matches the description given.
Write the equation for the reaction that takes place when gas is passed over heated CuO:

{C l}_{2} + 3 C u O \to {3 H}_{2} O + 3 C u C l

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H C l + 3 C u O \to {3 H}_{2} O + 3 C u C l

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{S O}_{2} + 3 C u O \to S_{2} + {3 H}_{2} O + 3 C u

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{2 N H}_{3} + 3 C u O \to N_{2} + {3 H}_{2} O + 3 C u

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Solution

The correct option is D ${2 N H}_{3} + 3 C u O \to N_{2} + {3 H}_{2} O + 3 C u$
Among the given gases only $N H_{3}$ reacts with cupric oxide to form copper and release $N_{2}$ gas .The balanced chemical equation is, $2 N H_{3} + 3 C u O \to N_{2} + 3 H_{2} O + 3 C u$ . So the correct option is D

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Similar questions

2 {NH}_{3} + 3 CuO \to

3 C u O + 2 N H_{3} \to 3 C u + 3 H_{2} O + N_{2}

N H_{3}

3 C u O + 2 {N H}_{3} ⟶ N_{2} + 3 H_{2} O + 3 C u

{N H}_{3}

N_{2}

3 C u O + 2 N H_{3} \to N_{2} + 3 H_{2} O + 3 C u

N H_{3}

N_{2}

3 C u O + 2 N H_{3} ⟶ 3 C u + 3 H_{2} O + N_{2}

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