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Each question contains STATEMENT-I(Asser...

Each question contains STATEMENT-I(Assertion) and STATEMENT-2(Reason).the statement carefully and mark the correct answer accoring to the instrution given below:
STATEMENT - 1 : The molecular mass of acetic acid determined by depression in freezing point method in benzene and water was found to be differrent.
STATEMENT - 2 : Water is polar and benzene is non-polar.

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 the assertion and reason both are false.

Text Solution

Verified by Experts

The correct Answer is:
A
Depression in freezing point is a colligative property which depends upon the number of particles are different in case of benzene and water that is why molecular weight of acetic acid determined by depression in freezing point method is also different.
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ERRORLESS -SOLUTION -ORDINARY THINKING OBJECTIVE QUESTIONS (Abnormal molecular mass )
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  2. The van't Hoff factor i for a compound which undergoes dissociation in...

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  3. The freezing point depression constant for water is -1.86^(@)Cm^(-1).i...

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  4. A solution containing 10 g per dm^(3) of urea (mol.wt. = 60 g mol^(-1)...

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  5. The correct relationship between the boiling points of very dilute sol...

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  6. Van't Hoff factor of Ca(NO(3))(2) is

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  7. The molecular mass of acetic acid dissolved in water is 60 and when di...

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  9. Dry air was passed successively through a solution of 5 gm of a solute...

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  10. One mole of a solute A is dissolved in a given volume of solvent. The ...

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  12. The degree of dissociation (alpha) of a weak electrolyte, A(x)B(y) is ...

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  13. Observe the following observations : pi(obs)= observed colligative p...

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  14. If the various terms in the following expressions have usual meanings,...

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  15. The Van't Hoff factor calculated from association data is always "" th...

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  19. Assertion : Molecular mass of benzoic acid when determined by colligat...

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