Which one of the following substances conducts electricity by the movement of ions ?

Related Mcqs:

The deliquescence is a property in which a solid____________________?

A. Absorbs moisture and remains solid B. Absorbs moisture and turns to liquid form C. Loses water of crystallization D. Increases the number of water of crystallization...

In diaphragm cell level of brine in anode compartment is kept slightly higher which prevents_______________?

A. Hydroxide ions to reach anode B. Chlorine gas to mix C. Cathode to decay D. All of the above...

Alkali and alkaline earth metals impart colours when heated over burner. It is due to______________?

A. Smaller electronegativity of alkali metals B. Smaller ionic radius of these metals C. De-excitation of electrons from higher energy levels to low energy level D. Excitation of electrons from low energy levels to higher energy levels...

Which of the following sulphates is not soluble in water ?

A. Sodium sulphate B. Potassium sulphate C. Zinc sulphate D. Barium sulphate...

The ore CaSO4.H2O has the general name_______________?

A. Gypsum B. Dolomite C. Calcite D. Plaster of Paris...