The gas, commonly known as “laughing gas”, is

Related Mcqs:

1. Laughing gas has chemical composition of following two elements ?

   A. Nitrogen + Hydrogen
   B. Nitrogen + Carbon
   C. Nitrogen + Oxygen
   D. Oxygen + Carbon
   E. None of these

2. The chemical name of Laughing gas is___________?

   A. Nitric oxide
   B. Nitrogen dioxide
   C. Nitrogen pentoxide
   D. Nitrous oxide

   Submitted by: Iram Saleem

3. Which of the gas is not known as green house gas?

   A. Methane
   B. Nitrous oxide
   C. Carbon dioxide
   D. Hydrogen

   Submitted by: Farjan Ahmed Soomro

4. Which gas is commonly used in balloons and airships?

   A. Helium
   B. Hydrogen
   C. Carbon
   D. Chlorine

   Submitted by: Amjad Ali Kosh

5. As comets get close to the sun, they start to “melt” and release gas and dust. This gas and dust forms what?

   A. “coma” around the comet’s nucleus and a long tail that points away from the sun
   B. “coma” that points away from the sun and a long tail around the comet’s nucleus
   C. Only “coma” around the comet’s nucleus
   D. Only a long tail that points away from the sun

   Submitted by: Muhammad Abdullah

6. Sodium Carbonate is commonly called ________?

   A. Plaster of Paris
   B. Washing Soda
   C. Common Salt
   D. None of these

   Submitted by: Mansoor Ahmed Suhag

7. Which of the following is commonly called a polyamide ?

   A. Rayon
   B. Nylon 
   C. Terylene
   D. Orion

   Submitted by: Mansoor Ahmed Suhag

8. For the generation of biogas, the materials commonly used are__________?

   A. Animal wastes
   B. Forest residues
   C. Aquatic plants
   D. None of these

   Submitted by: Yamna khan

9. Which ocean does not commonly experience tropical cyclones ?

   A. Western Pacific
   B. North Atlantic
   C. South Atlantic
   D. Indian Ocean

   Submitted by: Aamir Balouch

10. Which gas was discovered on the sun about 151 years ago during total solar eclipse?

    A. Hydrogen
    B. Helium
    C. Nitrogen
    D. Flourine

    Submitted by: Kashif Ashraf