Which of the following is true about an electrolyte?

I Electrolyte conducts electricity in molten state.

II Electrolyte conducts electricity in solid state.

III Electrolyte is soluble in water.

IV Electrolyte undergoes chemical decomposition when it conducts electricity.

Which of the following is not an electrolyte?

Naphthalene does not conduct electricity because it

Which of the following is most probably substance X?

What are the ions present in molten lead (II) bromide?

Which of the following happens during the electrolysis of molten sodium bromide?

I Sodium ions are attracted to the cathode.

II Bromide ions are attracted to the anode.

III Electrons are moving from anode to cathode.

IV At the cathode, bromine ions accept electron from anode.

What is formed at carbon electrode Q?

The electrolysis of aqueous sodium nitrate using carbon electrode was carried out in a lab. Which of the following is true about this experiment?

What need to be changed in order to get different gas from this experiment?

Which of the following are the factors that determine the type of ions to be discharged at the electrodes?

I Type of electrode used.

II Concentration of ions in the solution.

III The molecular mass of the atom used.

IV Position of ions in electrochemical series.