Question

09) Aluminium phosphate (AIPO) is 100% ionised 17)
in 0.01 molal aqueous solution. Hence, AT /K, is
a) 0.01
b) 0.015
c) 0.0175
d) 0.02

10) Low concentration of oxygen in the blood &
tissues of people living at high altitude is due to
a) low temperature
b) low atmospheric pressure
c) high atmospheric pressure
d) both low temperature and high atmospheric
pressure

11) An unripe mango placed in a concentrated salt
solution to prepare pickle, shrivels because.... .
a) it gains water due to osmosis
b) it loses water due to reverse osmosis
c) it gains water due to reverse osmosis
d) it loses water due to osmosis

12) The concentration of pollutant in ppm, that has
been measured at 450mg per 150kg of sample, is
a) 3 ppm
b) 6ppm
c) 3000 ppm
W ppm
d) 330 ppm

13) Total vapour pressure of mixture of 1 mole of 21) A
volatile component A (P = 100 mmHg) and
3 moles of volatile component B (P.° = 60
mmHg) is 75 mm. For such case
a) there is positive deviation from Raoult's law
b) boiling point has been lowered
c) Force of attraction between A and B is smaller 22)
than that
d) All the above statements are correct

14) A mixture contains 1 mole volatile liquid A (P.
= 100 mmHg) and 3 moles volatile liquid B(P.
= 80 mm.) If solution behave ideally, total 23)
vapour pressure of the distillate is approximately
a) 85 mmHg b) 86 mmHg
c) 90 mmHg d) 92 mmHg

15) Vapour pressure of pure water is 40 mm. If a
non - volatile solute is added to it vapour
pressure falls by 4 mm. Hence, molality of 24)
solution is
a) 6.173 m
b) 3.0864 m
c) 1.543 m
d) 0.772 m

16) Elevation in b.p. of a molar glucose solution (d|
= 1.2 g mL-2) is
a) 0.98 K
b) K
c) 1.20 K
d) 1.02 K
25)​

Answer 1

Answer:

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