Question

a compound which liberates reddish brown gas around the anode during electrolysis in its molten state is :

Answer 1

Answer: -

During electrolysis of lead bromide in molten state, the gas liberated at the anode is bromine which is a reddish brown colored gas.

Explanation: -

In the electrolysis of lead bromide,

The reaction occurring at the cathode is

Pb²⁺ + 2 e⁻ → Pb

The reaction occurring at the anode is

2 Br⁻ - 2 e⁻ → Br₂

The net reaction thus becomes

PbBr₂ → Pb + Br₂

Bromine is thus liberated at the anode.

Bromine is a diatomic gas. It is reddish brown in color.

Thus during electrolysis of lead bromide in molten state, the gas liberated at the anode is bromine which is a reddish brown colored gas.

Answer 2

Answer:

lead bromide is a compound which liberates reddish brown gas around the anode during electrolysis in it's molten state