Question

chemistry
Question 29

The particles which attract one another to form electrovalent compounds are:

1. Electrons

2. Protons

3. Ions

4. Molecules

[1]

Question 30

Which one of the following statements is NOT correct?

1. Pure water does not allow a current to flow through it.

2. The electrolyte only conducts when in the molten state.

3. Electrodes that react with the electrolytes are said to be “active”.

4. Ions must be present in the electrolyte in order that it conducts electricity.

[1]

Question 31

The salt formed by partial replacement of hydrogen ion of an acid by a basic

radical.

1. Sodium sulphite

2. Magnesium hydroxide

3. Potassium sulphate

4. Zinc hydrogen sulphite

[1]

Question 32

Alkali which dissociates only partially in aqueous solution:

1. Lithium hydroxide

2. Calcium hydroxide

3. Potassium hydroxide

4. Sodium hydroxide

[1]

Question 33

The property that matches with elements of the halogen family are:

1. They are chemically highly reactive

2. They are metallic in nature.

3. They are monoatomic in their molecular form.

4. They have one electron in the valence shell.​

Answer 1

Answer:

29. ions

30.The electrolyte only conducts when in the molten state.

31.Zinc hydrogen sulphite

32.Calcium hydroxide

33.They are chemically highly reactive