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Question

Generally, metallic oxides are basic and non-metallic oxides are acidic in nature. Solution of which of the following oxides in water will change the color of blue litmus to red?​

A
sulphur dioxide
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B
magnesium oxide
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C
iron oxide
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D
copper oxide
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Solution

The correct option is A sulphur dioxide
The oxides of metal are called metallic oxide, and they are basic in nature. The oxides of non-metals are called non-metallic oxide, and they are acidic in nature. ​
Non-metallic oxides react with water to form acidic solution. ​
When sulphur dioxide is dissolved in water, sulphurous acid is formed, that turns blue litmus to red. ​

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