Explain why, a solution of cane sugar does not conduct electricity but a solution of common salt is a good conductor of electricity.

The formula of the compound that would be formed by the combination of the following pairs of the elements $\mathrm{Mg}$ and ${\mathrm{N}}_2$ can be ${\mathrm{Mg}}_{\mathrm{x}}{\mathrm{N}}_{\mathrm{y}}$.

The value of x and y in the formula can be-

A. x = 1, y = 2

B. x = 2, y = 3

C. x = 3, y = 2

"Enter your correct answer as A, B or C."

The formula of the compound that would be formed by the combination of the following pairs of the elements $\mathrm{Li} \mathrm{and} \mathrm{O}$ can be ${\mathrm{Li}}_{\mathrm{x}}{\mathrm{O}}_{\mathrm{y}}$.

The value of x and y in the formula can be-

A. x = 1, y = 2

B. x = 2, y = 1

C. x = 1, y = 1

"Enter your correct answer as A, B or C."

The formula of the compound that would be formed by the combination of the following pairs of the elements such as aluminium and chlorine can be ${\mathrm{Al}}_{\mathrm{x}}{\mathrm{Cl}}_{\mathrm{y}}$.

The value of x and y in the formula can be-

A. x = 1, y = 3

B. x = 1, y = 2

C. x = 3, y = 2

"Enter your correct answer as A, B or C."

Give the formula of the compound that would be formed by the combination of the following pairs of the elements $\mathrm{K}$ and $\mathrm{H}$. Choose from the following:

$\left(\mathrm{KH} / \mathrm{HK}\right)$