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Acids

Identify the ...

Question

Identify the gas evolved when:
Sulphur is treated with concentrated nitric acid :

A

Sulphur dioxide

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B

Nitrogen dioxide

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C

Hydrogen

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D

Oxygen

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Solution

The correct option is B Nitrogen dioxide
Nitrogen dioxide is the gas evolved when Sulphur is treated with concentrated nitric acid.
S + 6HNO3 ----> H2SO4 + 2H2O + 6NO2

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