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Statement: CCI(4),C(6)H(6) and liquid SO...

Statement: `CCI_(4),C_(6)H_(6)` and liquid `SO_(2)` are aprotic solvents.
Explanation: Aprotic solvents does not influence the aicdic or basic nature of solute.

A

S is correct but E is wrong.

B

S is wrong but E is correc.

C

Both S and E are correct and E is correct explanation of S.

D

Both S and E are correct but E is correct explanation of S.

Text Solution

Verified by Experts

The correct Answer is:
C
Both are facts.
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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 : if a liquid solute more volatile than the solvent is added to the solvent, the vapour pressure of the solution is greater than vapour pressure of pure solvent. STATEMENT - 2 : Vapour pressure of solution is eqeal to vapour pressure of sovent.

Vapour pressure of a solvent is the pressure exterted by vapour when they are in equilibrium with its solvent at that temperature. The vapour pressure of solvent is dependent of nature of solvent, temperature, addition of non-volatile solute as well as nature of solute to dissociate or associate. The vapour pressure of a mixture obtained by mixing two valatile liquids is given by P_(M) = P_(A)^(@).X_(A)+P_(B)^(@).X_(B) where P_(A)^(@) and P_(B)^(@) are vapour pressures of pure components A and B and X_(A), X_(B) are their mole fractions in mixture. For solute-solvent system, the relatio becomes P_(M) = P_(A)^(@).X_(A) where B is non-volatile solute. A mixture of two volatile liquids A and B 1 and 3 moels respectively has a V.P of 300 mm at 27^(@)C . IF one mole of A is further added to this solution, the vapour pressure becomes 290 mm at 27^(@)C . The vapour pressure of A is:

Statement The water pouch of instant cold pack for treating athletic injuries breakes when squeezed and NH_(4)NO_(3) dissolves lowering the temperature. Explanation Addition of non-volatile solute into solvent results into depression of freezing point of solvent.

Assertion: C Cl_(4) and H_(2)O are immiscible . Reason : C Cl_(4) is a polar solvent.

P BAHADUR-IONIC EQUILIBRIUM-Exercise
  1. Statement : The dissociation constants of polyrotic acid are in the or...

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  2. Statement: All strong acids in water show almost almost same acidic na...

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  3. Statement: CCI(4),C(6)H(6) and liquid SO(2) are aprotic solvents. Ex...

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  4. Statement: The acidic nature of some cations is: B^(3+)gtBe^(2+)gtNa^(...

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  5. Statement: Acidic nature of boron trihalides is in the order BF(3)ltBC...

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  6. Statement: CO+NaOH overset("High"P)underset("High"T)rarr HCOONa Expl...

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  7. Statement: The dissociation constant of water at 60^(@)C is 10^(-13). ...

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  8. Assertion : Salting out action of sodium soap in presence of NaCl is b...

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  9. Statement: Hydrolysis of salt is an exothermic phenomenon. Explanati...

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  10. Statement: The pH of an aqueous solution of acetic acid remains unchan...

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  11. Statement: In acidic medium, Zn^(2+) is not precipitated by H(2)S. E...

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  12. Statement: Sodium carbonate can be titrated against sulphuric acid by ...

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  13. Statement: In an acid-basic titration involving a strong base and a we...

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  14. Assertion (A): Equivalent conductance increase with dilution for an el...

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  15. Statement: A micture of the solution of a weak acid and its conjugates...

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  16. Statement: For a weak electrolyte, the plot of molar conductivity (Lam...

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  17. Statement: The addition of a small amount of a 'neutral' electrolyte (...

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  18. Statement: In water, orthoboric acid behaves as a weak monobasic acid....

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  19. Prove that degree of dissocation of a weak acid is given by: alpha= ...

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  20. The concentration of fluroacetic acid (K(a)of acid =2.6xx10^(-3)), whi...

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