Question

The addition of lemon juice into the water makes it a better conductor.
A. true
B. false

Answer 1

Hint: Conduction occurs only if there is an array of electric charges in the material. If we add acid in water in order to dilute the acid, the resultant aqueous solution will contain free ions within it. This should be kept in mind while solving this question.

Complete answer:
Pure water is basically a non-conductor of electricity. We make water conductive by the addition or dissolution of impurities like salt or other minerals which are able to dissociate into ions and conduct electricity via their positive and negative ions.
Distilled water cannot conduct electricity. Lemon juice has citric acid in it. When lemon juice is added to water, the acid dissociates into anions and cations which are charged. Hence they can conduct electricity as these charged particles are able to flow inside the acid. Even though lemon as well as vinegar are weak conductors of electricity. The citric acid in the lemon will be acting as an electrolyte, a solution that can conduct electricity. It initiates conducting electric current and can also make deflection of magnetic compass as these salts and acids are the conductors of electric current. Hence when the salt or lemon juice is mixed in distilled water it becomes a conductor of electricity.
So the statement is true.

So, the correct answer is “Option A”.

Note:
Water has a high dielectric constant and hence it allows easy dissociation of molecules in it.