Solutions Quiz 8 – Punjab Meritorious School Preparation Portal

Welcome to your 26th Aug Solutions Quiz 8 CBT TEST

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– 0.372 °C

– 0.520 °C

+ 0.372 °C

– 0.570 °C

Which of the following solutions will exhibit highest boiling point?

The molal elevation constant for water is 0.52. What will be the boiling point of 2 molar sucrose solution at 1 atm pressure? (Assume B.P. of pure water as 100 °C)

101.04 °C

100.26 °C

100.52 °C

99.74 °C

0.654 °C

– 0.654 °C

6.54 °C

– 6.54 °C

An aqueous solution is 1.00 molal in KI. Which change will cause the vapour pressure of the solution to increase?

0.85 K

– 3.53 K

0 K

– 0.35 K

3

4

1

2

The freezing point of 1% solution of lead nitrate in water will be:

2 °C

1 °C

0 °C

below 0 °C

Osmotic pressure of 0.4 % urea solution is 1.64 atm and that of 3.42 % cane sugar is 2.46 atm. When the above two solutions are mixed, the osmotic pressure of the resulting solution is :

0.82 atm

2.46 atm

1.64 atm

4.10 atm

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