Question

A gas produced in lab is highly soluble in water. Its colourless solution burns pink when added few drops of phenolphthalein. What is the nature of this gas? Give example

Answer 1

The gas produced in lab is a base because when few drops of phenolphthalein is added to the gas it changes it's colour to pink and phenolphthalein only changes it's colour in basic solution .

Answer 2

The gas with the given condition is basic.

Given:

Gas 'X' which has the following characteristics:

• Highly soluble in water.
• When heated with few drops of phenolphthalein, produces pink color.

Explanation:

• From the given condition, the nature of the gas is inferred as basic.

• Phenolphthalein is a colorless pH indicator, which turns pink in reaction with base and remains colorless in reaction with acid.

Example:

• The gas with the given condition is inferred as ammonia $(NH_3)$ gas.
• It is because, its solubility value in water is 52.9 and it is a colorless gas and turns pink upon reaction with phenolphthalein.

Learn more about such concept

A few drops of phenolphthalein indicator were added to an unknown solution 'A'. it acquired pink colour. now another unknown solution 'B' was added to it drop by drop and the solution become colorless. predict the nature of 'A' and 'B'.

https://brainly.in/question/4205330

Phenolphthalein when added to a liquid X didn't show any colour change. Mention two inferences drawn from this activity​

https://brainly.in/question/11115310