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Question

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

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

The correct option is A sulphur dioxide
Sulphur forms acidic oxide. This means that sulphur dioxide and turns blue litmus red.
Hence, option "A" is correct answer.

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