Question

A yellow powder 'X' when burned produces a bright blue flame and with a suffucating gas that turnes wet blue litmus paper red.

a)analyze the reaction and identify the element 'X' and can this element used to be draw wires?

Answer 1

Explanation:

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. SO2 gas turns moist blue litmus red. This confirms that the gas is acidic in nature

Answer 2

Answer: Sulphur

Explanation: Sulphur is a yellow powder which on reacting with oxygen produces a bright blue flame with a suffocating gas sulphur dioxide(SO2).

S+O2-> SO2

Sulphur + Oxygen -> Sulphur Dioxide

Sulphur on reacting with water forms sulphurous acid(H2SO3)

SO2+H2O->H2SO3

Sulphur Dioxide + Water-> Sulphurous Acid

Here sulphur dioxide when tested with wet blue litmus reacts with water to form sulphurous acid which is an acid hence turns blue litmus paper into red.

X is sulphur. It is a non metal. Non metals are ductile. Ductility is the property of metals by which they can be drawn into wires. Hence Sulphur is not used to draw wires.

Hope it helps you. All the best.