AIEEE 2003 | Solutions Question 149 | Chemistry

In a 0.2 molal aqueous solution of a weak acid HX the degree of ionization is 0.3. Taking k_f for water as 1.85, the freezing point of the solution will be nearest to

-0.360^oC

-0.260^oC

+0.480^oC

-0.480^oC

AIEEE 2003

MCQ (Single Correct Answer)

-1

If liquids A and B form an ideal solution

the entropy of mixing is zero

the free energy of mixing is zero

the free energy as well as the entropy of mixing are each zero

the enthalpy of mixing is zero

AIEEE 2002

MCQ (Single Correct Answer)

-1

In a mixture of A and B, components show negative deviation when :

$$\Delta V_{mix}$$ > 0, $$\Delta S_{mix}$$ > 0

$$\Delta V_{mix}$$ = 0, $$\Delta S_{mix}$$ > 0

A - B interaction is weaker than A - A and B - B interaction

A - B interaction is stronger than A - A and B - B interaction

AIEEE 2002

MCQ (Single Correct Answer)

-1

Freezing point of an aqueous solution is (-0.186)^oC. Elevation of boiling point of the same solution is K_b = 0.512 ^oC, K_f = 1.86 ^oC, find the increase in boiling point.

0.186 ^oC

0.0512 ^oC

0.092 ^oC

0.2732 ^oC

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