Electrical Conductivity of Ionic Compounds

Q.

Tap water conducts electricity whereas distilled water does not. Why ?

Q.

Give two examples in each case:

Strong electrolytes

Q.

Give two examples in each case:

Weak electrolyte

Q.

Define electrolyte.

Q. Question 1
Why do $\text{HCl}$, ${\text{HNO}}_3$, etc., show acidic character in aqueous solutions while solutions of compounds such as alcohol and glucose do not show acidic character?

Q.

Classify the following substances under three headings: strong electrolytes, weak electrolytes, and non-electrolytes.

Acetic acid, ammonium chloride, ammonium hydroxide, carbon tetrachloride, dilute hydrochloric acid, sodium acetate, dilute sulfuric acid

Q.

What is the difference between weak electrolyte and non-electrolyte?

Q.

Differentiate between.

(a) Strong electrolytes and weak electrolytes

Q.

Which of the following is a correct statement?

1. All liquid conduct electricity

2. Aluminum is an insulator

3. All solids conduct electricity

4. Sea water is a good conductor of electricity

Q. Distilled water is a conductor of electricity.

1. poor
2. moderate
3. good

Q. Which of the following solution do not conduct electricity?

1. Potassium bromide
2. Distilled water
3. Sodium chloride
4. Copper sulphate

Q. Distilled water is a conductor of electricity.

1. good
2. poor
3. moderate

Q.

When compound X is dissolved in water, it dissociates as shown:
$X\to A^{-}+O{H}^{-}.$
Then X is:

1. Arrhenius acid

2. Arrhenius base

3. Neutral

4. Cannot be determined.

Q. Pure water is a good conductor of electricity.

1. True
2. False

Q. Which of the following compounds can make pure water conduct electricity?

1. $\text{NaCl}$
2. $\text{NaOH}$
3. ${\text{H}}_2{\text{SO}}_4$
4. $\text{HCl}$

Q. An aqueous solution of an acid conducts electricity.

1. True
2. False

Q. Milk is a poor conductor of electricity.

1. False
2. True

Q. The impurities and salts dissolved in water makes it a conductor of electricity.

1. True
2. False

Q. The aqueous solution of which of the following compounds conduct electricity?

1. Sodium chloride
2. Nitric acid
3. Sodium hydroxide
4. Methane

Q. When compound X is dissolved in water, it dissociates as shown below:
$X\to A+O{H}^{-}.$
Then X is:

1. Arrhenius acid
2. Arrhenius base
3. Cannot be determined.
4. Neutral

Q. Burst the bubbles containing liquids that are good conductors of electricity.

1. Nitric acid
2. Hydrochloric acid
3. Distilled water
4. Sulphuric acid
5. Caustic soda
6. Milk
7. Honey
8. Mineral water

Q.

Which of these is correct about properties of pure sulphuric acid?

1. Colourless, odourless, bitter in taste, good conductor of electricity

2. Colourless, odourless, sweet in taste, poor conductor of electricity

3. Odourless, blue coloured, bitter in taste, poor conductor of electricity

4. Colourless, odourless, sour in taste, a poor conductor of electricity.

Q. An aqueous solution of an acid conducts electricity.

1. True
2. False