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Chemistry Solution And Liquid State Test Online MCQs

Test Name Solution And Liquid State MCQs Test
Subject Chemistry
Test Type MCQs
Total Question 15
Total Marks 30
Total Time 15 Mints
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Get all the Chemistry Solution And Liquid State MCQs Test Online to prepare for the Mock test. increase your knowledge about solution and Liquid state by attempting these questions online. Chemistry Solution And Liquid State MCQs Test Online are given below.

Chemistry Solution And Liquid State Test Online MCQs

Chemistry

1. A 5% solution (by mass) of cane sugar in water has freezing point of 271 K and freezing point of pure water is 273.15 K. The freezing point of a 5% solution (by mass) of glucose in water is

 

Question 1 of 15

2. At 300K, the vapour pressure of an ideal solution containing 3 mole of A and 2 mole of B is 600 torr. At the same temperature, if 1.5 mole of A and 0.5 mole of C (non-volatile) are added to this solution the vapour pressure of solution increases by 30 torr. What is the value of P⁰B?

 

Question 2 of 15

3. 0.450 g of urea (mol. Wt. 60) in 22.5g of water show 0.170°C of elevation in boiling point. The molal elevation constant of water is:

 

Question 3 of 15

4. 20 g of a substance were dissolved in 500 mL of water and the osmotic pressure of the solution was found to be 600 mm of mercury at 15°C. The molecular weight of substance is:

 

Question 4 of 15

5. 0.01 M solution of KC1 and BaC1₂ are prepared in water. The freezing point of KC1 is found to be –2°C. What is the freezing point of BaC1₂ to be completely ionised?

 

Question 5 of 15

6. The normality of orthophosphoric acid having purity of 70% by weight and specific gravity 1.54 is:

 

Question 6 of 15

7. The vapour pressure of benzene at 30°C is 121.8 mm. By adding 15 g of non-volatile solute in 250 g of benzene, its vapour pressure is decreased to 120.2 mm. The molecular weight of solute is: 

 

Question 7 of 15

8. 40 m1 of 0.1 M ammonia solution is mixed with 20 m1 of 0.1 M HC1. What is the pH of the mixture? (pKb of ammonia solution is 4.74)

 

Question 8 of 15

9. The vapour pressure of pure benzene at a certain temperature is 0.850 bar. A non-volatile, non-electrolyte solid weighing 0.5 g is added to 39.0 g of benzene (molar mass 78 g/mo1). The vapour pressure of the solution then is 0.845 bar. What is the molecular mass of the solid substance?

 

Question 9 of 15

10. The molar concentration of 20 g of NaOH present in 5 liter of solution is:

 

Question 10 of 15

11. An aqueous solution of hydrochloric acid

 

Question 11 of 15

12. I mo1 each of the following compounds is dissolved in 1L of solution. Which will have the largest ∆Tb value?

 

Question 12 of 15

13. Temperature does not affect:

 

Question 13 of 15

14. Exactly 1 g of urea dissolved in 75 g of water gives a solution that boils at 100.114°C at 760 torr. The molecular weight of urea is 60.1. The boiling point elevation constant for water is

 

Question 14 of 15

15. An aqueous solution of NaC1 shows the depression of freezing point of water equal to 0.372 K. The boiling will be BaC1₂ solution of same molality will be [Kf (H₂O) = 1.86 K kg mol⁻¹; Kb(H₂O) = 0.52 K kg mol⁻¹]

 

Question 15 of 15


 

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