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Q.

Statement 1: The micelle formed by sodium stearate  in water contains -COO- groups at the surface.Statement 2: Addition of stearate decreases the surface tension of water.

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a

Both statements 1 and 2 are correct

b

Both statements 1 and 2 are incorrect

c

Statement 1 is correct and statement 2 is incorrect

d

Statement 1 is incorrect and statement 2 is correct

answer is A.

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Detailed Solution

The micelle formed by sodium stearate in water has -COO- groups at the surface as it is the hydrophilic end is true. The  surface tension of water is reduced by addition of stearate is also true.
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