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Assertion(A): The micelle formed by sodi...

Assertion(A): The micelle formed by sodiumm stearate in water has -COO groups at the surface.
Reason(R): Surface tension of water is reduced by addition of stearate.

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are False.

Text Solution

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The correct Answer is:
B
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Assertion : The micelle formed by sodium stereate in water has -COO^(-) groups at the surface. Reason : Surface tension of water is reduced by the addition of stereate.

each question constain STATEMENT-1(Assertion ) and STATEMENT - 2 (reason). examine the statement carefully and work the correct answer accoridng to the instructions given below : STATEMENT-1: The micelle formed by sodium sterate in water hasj- COO^(-) groups at the surface. STATEMENT-2: Surface tension of water is reduced by the addition of sterate.

The surface tension of pure water is

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Detergents ………… the surface tension of water.

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