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

Sodium chloride

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Copper (II) oxide

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Copper (II) sulphate

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Lead (II) bromide

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is C Lead (II) bromide
We know that Bromine gas is reddish brown in colour and which can only liberates during electrolysis of Lead (II) bromide $(P b B r_{2})$
During electrolysis of Lead (II) bromide , Positive lead ions (cations) move to the cathode and gain electrons to become lead metal and . negative bromide ions (anions) move to the anode and loose an electron to make chlorine atoms. Two bromine atoms then combine and the diatomic bromine gas $(B r_{2})$ is released at the anode.
Therefore, D is correct option.

Suggest Corrections

Similar questions

Q. A compound which during electrolysis in its molten state, liberates a reddish brown gas at the anode is _________.

Q. Select the correct answer from the choices a, b, c and d which are given.
Write only the letter corresponding to the correct answer.
(i) A compound which liberates reddish brown gas around the anode during the electrolysis in its molten state is:
(a) Sodium chloride
(b) Copper (II) oxide
(c) Copper (II) sulphate
(d) Lead (II) bromide

(ii) During ionization metals lose electrons, this change can be called:
(a) Oxidation
(b) Reduction
(c) Redox
(d) Displacement

(a) Select the correct answer.

A compound which during electrolysis in its molten state, liberates a reddish brown gas at the anode.

(i) Sodium chloride

(ii) Copper [II] oxide

(iii) Copper [II] sulphate

(iv) Lead [II] bromide

(b) During electroplating of an article with nickel,

(i) Name

A. The electrolyte

B. The cathode

C. The anode

(ii) Give the reaction of the electrolysis at

A. The cathode

B. The anode

(c) A, B and C are three electrolytic cells, connected in different circuits. Cell 'A' contains NaCl soln., and the bulb in the circuit glow brightly, when the circuit is completed. Cell 'B' contains acetic acid and the bulb does not glow. Give reason for each observation.

Q. During the electrolysis of copper [II] sulphate solution using platinum as cathode & carbon as anode. State the change noticed in the electrolyte.

Q. Chlorine gas is obtained at the anode during the electrolysis of molten sodium chloride.

Join BYJU'S Learning Program