The density of water may be__________________?

Related Mcqs:

1. Acid present in acid rain may be__________________?

   A. H2SO4
   B. HNO3
   C. both A and B
   D. none

2. Water has maximum density at __________________?

   A. 0°C
   B. 2°C
   C. 4°C
   D. 100°C

3. When water freezes at 0°C its density decreases due to_______________?

   A. Change of bond angles
   B. Cubic structure of ice
   C. Empty space present in the structure of ice
   D. Change of bond length

4. By combining n atmic orbitals no. of hybrid orbitals will be__________________?

   A. 2n
   B. n
   C. 3n
   D. impossible to predict

5. AgCl dissolved with conc (2×10-2) Ksp will be__________________?

   A. 3.6 x 10-6
   B. 3.6 x 10-5
   C. 7.2 x 10-6
   D. 4 x 10-4

6. Chlorination of water may be harmful if the water contains_________________?

   A. Ammonia
   B. Dissolved oxygen
   C. Carbon dioxide
   D. All

7. Chlorination of water may be harmful if the water contains_________________?

   A. Ammonia
   B. Dissolved oxygen
   C. Carbon dixide
   D. All

8. Which law states that the rate of the effusion of a gas is inversely proportional to the square root of its density?

   A. Graham’s Law
   B. Gay-Lussac’s law
   C. Boyle’s law
   D. None of these

   Submitted by: Malik Asghar Hussain

9. The density of a gas is 1.964 g dm-3 at 273 K and 76 cm Hg. The gas is _________?

   A. CH4
   B. CO2
   C. C2H4
   D. Xe

   Submitted by: Muhammad Ali Kunbhar

10. What is the density ofargon gas at a temperature of 30°C and a pressure of 1.05 atm?

    A. 1.65 g/L
    B. 1.67 g/L
    C. 1.68 g/L
    D. None of the above

    Submitted by: Muhammad Ali Kunbhar