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Motion and Rest

The bulb in t...

Question

The bulb in the circuit does not glow when pure water is used as solution. Which of the following can be added to water to make the bulb glow?

A

Sand

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B

Sugar

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C

Honey

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D

Salt

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Solution

The correct option is D Salt
Pure water is an insulator but when we dissolve salt into it, the salt dissociates into ions. Now current can flow through this circuit. Apart from salt, all the other options cannot dissociate into ions.

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