1. 18g of glucose is dissolved in 180g of water. The relative lowering of vapor pressure is

a. 1
b. 1.8
c. 0.01
d. 0.001

2. 100g of a 10% (w/w) NaOH contains 10g of NaOH in

a. 100g of H2O
b. 110g of H2O
c. 10g of H2O
d. 100g solution

3. Which of following w/w solutions has the lowest freezing point ?

a. 18% glucose
b. 6% urea
c. 34.2% sucrose
d. 9% glucose

4. All solutions containing 1g of non-volatile solutes will have

a. same vapor pressure
b. same boiling point
c. same freezing point
d. all

5. Molarity of pure water is

a. 1
b. 1.8
c. 55.5
d. 18

6. A solution of urea is 10% w/v, the volume in which 1 mole of it is dissolved will be

a. 6dm3
b. 0.6dm3
c. 60cm3
d. 0.54dm3

7. The solubility of a substance decrease with increase in temperature id heat of solution is

a. positive
b. negative
c. zero
d. cannot be predicted

8. Molarity of glucose solution when 9g of it is dissolved in 250cm3 of solution is

a. 0.25M
b.0.2M
c. 0.5M
d. none of these

9. Sea water has about 6ppm dissolved oxygen.What mass of dissolved oxygen is present in 1kg of sea water

a. 6g
b.0.006g
c. 0.006kg
d. 0.006mg

10. Which of following is volatile

a. glucose
b. urea
c. sucrose
d. water

11. Which of following is not true of a colloid

a. it is heterogeneous
b. scatter light
c. can pass through ultra filter paper
d. its particles cannot be seen under ordinary microscope