Comparison of Ionic and Covalent Compounds

Q.

Why doesn't oil dissolve in water?

Q.

Glass is a crystalline material.

1. False

2. True

Q. Covalent compounds are more stable than ionic compounds.

1. True
2. False

Q.

Carbon dioxide will dissolve in water under high pressure. So is there a high pressure created while it is raining so that carbon dioxide can dissolve in water to form carbonic acid?

Q.

Lithium Chloride is highly soluble in -

1. ${\mathrm{C}}_6{\mathrm{H}}_6$

2. ${\mathrm{H}}_2\mathrm{O}$

3. ${\mathrm{D}}_2\mathrm{O}$

4. All of these

Q. Identify the correct statement(s) among the following.

1. Sodium bromide is soluble in benzene.
2. Lithium chloride is soluble in water.
3. Methane is soluble in benzene.
4. Methane is soluble in water.

Q.

Electrovalent or Ionic compounds are non-directional in nature and Covalent compounds are directional in nature.

1. True

2. False

Q. Which of the following is a good conductor of electricity?

1. Nitrogen
2. Diamond
3. Carbon dioxide
4. Graphite

Q. Covalent compounds are good conductors of electricity in molten and aqueous state.

1. False
2. True

Q.

A new metal X is discovered and it is found to be between potassium and sodium in the activity series

Will the carbonate of X dissolve in water?

Q. Statement - 1: Two atoms form an ionic bond if one of the atoms has 1, 2 or 3 electrons in its outer most shell and is able to lose electrons easily.

Statement - 2: Two atoms form an ionic bond if one of the atom has 5, 6 or 7 electrons in its outer most shell and gains electrons easily.

1. Statement 1 is true and statement 2 is false
2. Statement 1 is false and statement 2 is true
3. Both statements are true
4. Both statements are false

Q. Ionic compounds are said to have:

1. high melting point and low boiling point.
2. low melting point and high boiling point.
3. low melting and boiling points.
4. high melting and boiling points.

Q. Electrovalent compounds are soluble in water and insoluble in organic solvents.

1. False
2. True