Chemistry Chapter 9 Solutions and Colloids Mcqs Test Online Class 11th Punjab

Please wait...

• <<
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• >>

 0%

Question 1 of 12

Chemistry

1. Which of the following W/W solutions has the lowest freezing point?

18% glucose

6% urea

9% glucose

34.2% sucorose

Question 1 of 12

Question 2 of 12

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

6 x 10⁻³kg

6 x 10⁻³g

6g

6 x 10⁻³mg

Question 2 of 12

Question 3 of 12

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

0.2M

0.5M

None of these

0.25M

Question 3 of 12

Question 4 of 12

4. Which of the following is volatile

Sucrose

Glucose

Urea

Water

Question 4 of 12

Question 5 of 12

5. 18g glucose is dissolved in 180g of water. The relative lowering of vapour pressure is:

0.001

0.01

1

1.8

Question 5 of 12

Question 6 of 12

6. Molarity of pure water is

1

1.8

18

55.5

Question 6 of 12

Question 7 of 12

7. Which of the following is not true of a colloid.

Scatter light

It is heterogeneous

Can pass through ultra filter paper

Its particles cannot be seen under ordinary microscope

Question 7 of 12

Question 8 of 12

8. Aerosol are colloids which contain
(a) A Solid dispersed in a liquid
(b) A solid dispersed in a gas
(c) A liquid dispersed in a gas
(d) A liquid in another liquid

a

a, b

b, c

c, d

Question 8 of 12

Question 9 of 12

9. A solution of urea (Mol.Wt=60) is 10% (W/V). the volume in which 1 mole of it is dissolved will be

0.6dm³

0.54 dm³

60cm³

6dm³

Question 9 of 12

Question 10 of 12

10. The solubility of a substance decreases with increase in temperature if heat of solution is:

Cannot be predicted

Zero

Positive

Negative

Question 10 of 12

Question 11 of 12

11. 100g of a 10% (W/W) NaOH contains 10g of NaOH in

100g of H₂O

110g of H₂O

100g solution

10g of H₂O

Question 11 of 12

Question 12 of 12

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

Same freezing point

Same boiling point

Same vapour pressure

All of a, b, c

Question 12 of 12

 Loading...

 

Other Related test

• Punjab 9th Class Chemistry Model Paper 6 Mcqs Test Online
• Punjab 12th Class Chemistry Analytical Chemistry Mcqs Test Online
• Punjab 9th Class Math Chapter 9 Introduction To Coordinate Geometry Mcqs Test Online
• Punjab 12th Class Biology Chapter 20 Chromosome and DNA Mcqs Test Online
• Punjab 9th Class Urdu Chapter 1 Hijrat e Nabwi Mcqs Test Online
• Punjab 11th Class Chemistry Theories of Covalent Bonding and Shapes of Molecules Mcqs Test Online
• Punjab 9th Class Math Model Paper 1 Mcqs Test Online
• Punjab 11th Class English The First Day of School Mcqs Test Online
• Punjab 9th Class Urdu Chapter 12 Hausla Na Haaro Agy Barho Mcqs Test Online
• Punjab 12th Class Biology Chapter 23 Biotechnology Mcqs Test Online