CHEMISTRY TEST - 1 - ISSB Pakistan

ACADEMIC TEST (Chemistry) -1 (QM)

ACADEMIC TEST (Chemistry) -1 (QM)

The number of attempts remaining is 100

1 / 10

1. Which of the following units represents largest amount of energy?

A. Calorie

B. Electron volt

C. Joule

D. Erg

2 / 10

2. When electrons revolve in stationary orbits,

A. They become stationary

B. There is increase in energy

C. There is no change in energy level

D. They are gaining kinetic energy

3 / 10

3. Evaporation of water is

A. A process accompanied by chemical reaction.

B. An exothermic change

C. An endothermic change

D. A process where no heat changes occur

4 / 10

4. Space around nucleus where finding of electrons is maximum is

A. orbit

B. Sub shell

C. Orbital

D. Electron cloud

5 / 10

5. What is the effect of mixing the anti freezing agent ethylene glycol in water?

A. Increases the freezing point

B. Decreases the boiling point

C. Decreases the FP and Increases BP

D. none of these

6 / 10

6. The compressibility factor of an ideal gas is

A. 4

B. 1

C. 2

D. 0

7 / 10

7. If we consider that 1/6 in place of 1/12 mass of carbon atom is taken to be the
relative atomic mass unit, the mass of one mole of substance will be?

A. A function of the molecular mass of substance

B. Decrease twice

C. Increase two fold

D. Remains unchanged

8 / 10

8. The electro negativity of elements in a period from left to right

A. first increases then decreases

B. decreases

C. increase

D. first decreases then increases

9 / 10

9. Which one of the following molecules shows high percentage of ionic
character?

A. H₂O

B. HBr

C. HF

D. HCI

10 / 10

10. The volume of 2.8 g of carbon monoxide at 27°C and 0.821 atm pressure is
(R=0.0821 lit. atm. Mol¹K')

A. 1.5 L

B. 3 L

C. 0.3 L

D. 30 L

Your score is

Exit

Thank You for Your Judgement!!!

CHEMISTRY TEST - 1

10x Questions with Answer Sheet

CHEMISTRY TEST - 1

NEXT STEP

NEXT STEP

PREVIOUS SECTION

PREVIOUS SECTION