Properties of ionic compound

Q.

Which is more ionic $\mathrm{NaCl}\mathrm{or}{\mathrm{CuCl}}_2$?

Q.

Which compound is used as a coating material in photographic films?

1. $AgN{O}_3$

2. $AgO$

3. $AgBr$

4. ${Ag}_{2}Se$

Q.

The electronic configuration of two elements A and B are 2, 8, 2 and 2, 6 respectively. What type of compound is formed when they combine?

1. Covalent compound

2. Coordinate compound

3. Ionic compound

4. None of these

Q.

Sodium chloride is an ionic compound. Why?

Q.

How many chloride ions are needed to cancel the +2 charge of magnesium in magnesium chloride?

1. 4

2. 2

3. 3

4. 5