The salts nacl and cacl2 (a) are good conductors of electricity (b) have positive charges (c) have the same crystal lattice of energy(d) are held together by ionic bond

The correct answer is Option a and d.

Explanation: Both the salts are ionic in nature because when dissolved in water, they dissociate into their respective ions.

Ionic compounds are held together by ionic bond. They are neutral compounds as both positive and negative charges neutralize each other. These compounds are also good conductors of electricity because of the presence of ions.

As both the salts have different molecular formula, both of them will have different crystal lattice system and hence, different crystal lattice energy.

From the above information, the correct options are option a and option d.