Question

2. Sodium thiosulphate solution reacts with hydrochloric acid solution to produce
a. a colloidal solution of sulphur
b. transparent solution of sulphur
c. black solution of sulphur
d. white precipitate of NaCl​

Answer 1

The reaction of sodium thiosulfate and hydrochloric acid generates sulfur dioxide gas, which is a skin and eye irritant.

Answer 2

Option a - a colloidal solution of sulphur

Sodium thiosulphate solution reacts with a hydrochloric acid solution to produce a colloidal solution of sulphur

Explanation:

• Sodium thiosulphate reacts with dil. hydrochloric acid to produce sulphur dioxide gas and precipitates yellow sulphur.

• It produces a cloudy precipitate. when both of the reactants then the chemicals are clear solutions yet on reacting, they form a yellow precipitate of sulphur.
• Here Sodium thiosulphate when reacts with dilute hydrochloric acid, it produces sulphur dioxide, sodium chloride, sulphur, and water.
• The Sulphur dioxide is a soluble gas that is obtained from this reaction. Here sulphur formed is the insoluble mixture that remains as a white or pale-yellow precipitate or a colloid.
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