Chapter - 4 Chemical Effects of Electric Current

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Q
Chemical Effects of Electric Current

Question:

A tester is used to check the conduction of electricity through two liquids, labelled A and B. It is found that the bulb of the tester glows brightly for liquid A while it glows very dimly for liquid B. You would conclude that

(i) liquid A is a better conductor than liquid B.

(ii) liquid B is a better conductor than liquid A.

(iii) both liquids are equally conducting.

(iv) conducting properties of liquid cannot be compared in this manner.

Answer:

(i) liquid A is a better conductor than liquid B.

The bulb glows brighter in liquid A as compared to liquid B, which means the amount of current passing through bulb A is more. The amount of current passing through a solution depends on its conductivity. With more conductivity, more current will pass. Hence, liquid A is a better conductor than liquid B.


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