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CTET Paper II (Mathematics and Science) 29 Dec 2021 Solved Paper

Question : 69 of 150

Marks: +1, -0

Sulphur Dioxide when dissolved in water forms-

Solution:

Concept:

Non-metal oxides like sulphur dioxide are acidic and react with water to form acids.

Explanation:

Sulphur dioxide (

SO_{2}

) dissolves in water to give sulphurous acid (

H_{2}SO_{3}

The chemical equation is:

SO_{2} + H_{2}O \rightarrow H_{2}SO_{3}

This is an acidic oxide reaction. It does not produce sulphur trioxide, sulphuric acid, or elemental sulphur.

Answer:

B. Sulphurous acid

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