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Assertion : The impurities always decre...

Assertion : The impurities always decrease the surface tension of a liquid.
Reason : The change in surface tension of the liquid depends upon the degree of contamination of the impurity.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
D
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ERRORLESS -SURFACE TENSION-Exercise
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  9. Assertion : The water rises higher in a capillary tube of small diame...

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  11. Assertion : The shape of a liquid drop is spherical. Reason : The ...

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  12. A soap film of surface tension 3 xx 10^(-2)N//m formed in a rectangula...

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  13. Energy required to form a soap bubble of diameter 20 cm will be (Surfa...

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  14. The work done in blowing a soap bubble of volume V is W. The work done...

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  15. Surface tension of soap solution is 2 xx 10^(-2) N//m . The work done ...

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  16. The execc pressure inside the first soap bubble is three times that in...

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  17. When a capillary tube is dipped in water, water rises upto 8cm in the ...

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  18. A bubble of 8 mm diameter is formed in the air. The surface tension of...

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  19. The height upto which water will rise in a capillary tube will be:

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  20. Water rises to a height of 10 cm in capillary tube and mercury falls t...

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