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ICSE Class 10 Chemistry Question 18 of 23

Model Paper 1 — Question 17

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17
Question

Question 7(i)

(a) Name the other ion formed when ammonia gas dissolves in water.

(b) Give one test that can be used to detect the presence of the ion produced.

(c) Name the gaseous product formed when dilute nitric acid is added to copper.

Answer

(a) Hydroxyl ion [OH-].

(b) The red litmus paper turns blue due to the presence of hydroxyl ion in the solution.

(c) Nitric oxide (NO).