(a) Ranjana wants to prove that ammonia is a reducing agent. To demonstrate this, she passes ammonia gas over heated copper oxide. What will she observe?

ICSE Class 10 Chemistry PYQ · 2024 Specimen · Section B

5(i)Written · 2024 · Section B · 2024 Specimen · 🔁 also 2025

(a) Ranjana wants to prove that ammonia is a reducing agent. To demonstrate this, she passes ammonia gas over heated copper oxide. What will she observe?

(b) Write a balanced chemical equation for the above reaction.

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(a) Black Copper [II] oxide is reduced to reddish brown copper by Ammonia.

(b) 2NH3 + 3CuO ⟶ 3Cu + 3H2O + N2↑

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