Assertion: Two charged particles at rest experiences only electrical force.

Reason: Charges at rest can only produce electric field.

Assertion: Electric force is the reason for existence of molecules.

Reason: At atomic level electric force is the most effective force or strongest force.

Assertion: For a conductor, when observed at very large distance, equipotential surfaces are plane. 

Reason: Electrostatic field is a conservative field.

Assertion:- Electric field lines are always perpendicular to the surface of conductor.

Reason:- Electric field is always perpendicular to equipotential surface.

Assertion:- Electrostatic field lines are perpendicular to the surface of conductor.

Reason:- Surfaces of a conductor are equipotential.

Assertion: An electrostatic field represent as

$\overrightarrow{E}=E_x\hat{i}+E_y\hat{j}+E_z\hat{k}$ satisfies $\overrightarrow{\nabla }\times \overrightarrow{E}=0$

Reason: $E_x, E_y, E_z$ are independent of each other.

Assertion: Electric field inside conductor is zero in electrostatics. 

Reason: Charge appears on surface of conductor.

Assertion: Heart can be considered as dipole.

Reason: Electric flux and electric field are same as dipole.

Assertion: Electric flux density is independent of medium.

Reason: It depends only on distance and charge.