Dry ammonia has no action on litmus paper but a solution of ammonia in water turns red litmus paper blue. Why is it so?

Question

Dry ammonia has no action on litmus paper but a solution of ammonia in water turns red litmus paper blue. Why is it so?

Monjur Alahi

6 views

2025-01-04 04:42

1 Answers

Related Questions

An element X forms an oxide which turns red litmus blue. Identify whether X is a metal or non-metal.

1 Answers 12 Views

What is the action of litmus on : (i) dry ammonia gas (ii) Solution of ammonia gas in water

1 Answers 6 Views

A student puts a drop of reaction mixture of a saponification reaction first on a blue litmus paper and then on a red litmus paper.

1 Answers 6 Views

What is the action of red litmus on (i) Dry ammonia gas (ii) Solution of ammonia gas is water?

1 Answers 6 Views

The metal M reacts vigorously with water to form a solution S and a gas G. The solution S turns red litmus to

1 Answers 6 Views

Name an indicator which is red in acid solution but turns blue in basic solution.

1 Answers 8 Views

A salt X when dissolved in distilled water gives a clear solution which turns red litmus blue. Explain the phenomenon.

1 Answers 4 Views

An element E forms an oxide E An aqueous solution of E O turns red litmus paper blue. (a) What is the nature of the oxide E O ?

1 Answers 9 Views

A colourless organic liquid X of molecular formula C2H402 turns blue litmus to red. Another colourless

1 Answers 10 Views

(a) What change will you observe if you test soap solution with a litmus paper (red and blue) ?

1 Answers 5 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

In dry state Ammonia contains no hydroxyl ions. On dissolving in water, it forms NH₄OH which dissociates to give NH₄⁺ and OH^-ions. Thus solution becomes basic and turns red litmus paper blue.

NH₃ (g) + H₂O (l) ---------------> NH₄OH (aq)

NH₄OH (aq) --------------> NH₄⁺ (aq) + OH^- (aq)

6 views Answered 2023-02-05 15:29