Question

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

Answer 1

Yellow coloured powder X which is soluble in CS2 is sulphur. Sulphur burns in oxygen to give sulphur dioxide gas (SO2) which is suffocating smelling gas.

S + O2 -------> SO2

SO2 gas turns moist blue litmus red. This confirms that the gas is acidic in nature. Hence, S is a non-metal.

Answer 2

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