1
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

A solution of urea (molar mass $$60 \mathrm{~g} \mathrm{~mol}^{-1}$$ ) boils at $$100.20^{\circ} \mathrm{C}$$ at the atmospheric pressure, if $$K_f$$ and $$K_b$$ for water are 1.86 and $$0.512 \mathrm{~K}$$ $$\mathrm{kg} \mathrm{mol}^{-1}$$ respectively. The freezing point of the solution will be

A
$$-0.654\Upsilon$$C
B
$$+0.654\Upsilon$$C
C
$$-0.726\Upsilon$$C
D
$$+0.726\Upsilon$$C
2
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

When difference in boiling points of two liquids is too small, then the separation is carried out by

A
steam distillation
B
simple distillation
C
fractional distillation
D
vacuum distillation
3
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following will form an ideal solution?

A
$$\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}$$ and $$\mathrm{H}_2 \mathrm{O}$$
B
$$\mathrm{HNO}_3$$ and $$\mathrm{H}_2 \mathrm{O}$$
C
$$\mathrm{CHCl}_3$$ and $$\mathrm{CH}_3 \mathrm{COCH}_3$$
D
$$\mathrm{C}_6 \mathrm{H}_6$$ and $$\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_3$$
4
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

The molal elevation constant is the ratio of elevation in boiling point to

A
molarity
B
molality
C
mole fraction of solute
D
mole fraction of solvent
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