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Acidic,Basic Natures of Oxides

A yellow colo...

Question

A yellow coloured powder X is soluble in carbon disulphide.It burns with a blue flame forming suffocating smelling gas which turns moist blue litmus red. Identify X and give the chemical reaction .Identify it is metal or non metal.

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Solution

iSulphur is yellow coloured and soluble in non-polar solvents like carbon disulphide.
It reacts with oxygen to form sulphur dioxide gas which is acidic and turns blue litmus red,

S + O₂ = SO₂

X is sulphur and is a non-metal.

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