The chemical name of 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 gas, commonly known as “laughing gas”, is

   A. Carbon Dioxide
   B. Sulfur Dioxide
   C. Nitrous Oxide
   D. Sodium Oxide

3. The chemical name of “Acid” (Tezaab) is___________?

   A. Sulfuric acid
   B. Sodium chloride
   C. Citric Acid
   D. None of these

   Submitted by: Saeed Ahmed Brohi

4. The gas used in a refrigerator to cool water is___________?

   A. Nitrogen
   B. Carbon dioxide
   C. Methane
   D. Tetrafluoroethane

   Updated by: NoumaN

5. The gas usually filled in the electric bulb is___________?

   A. Nitrogen
   B. Hydrogen
   C. Carbon dioxide
   D. Oxygen

   Submitted by: Muhammad Ali Kunbhar

6. 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

7. 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

8. The energy stored in a dam is___________?

   A. Kinetic energy
   B. Electrical energy
   C. Potential energy
   D. None of these

   Submitted by: Gohar Rahman

9. The most dense and heaviest planet is___________?

   A. Jupiter
   B. Earth
   C. Mars
   D. Venus

   Submitted by: Mansoor Ahmed Suhag

10. Vector of Kala-azar disease is___________?

    A. Sandfly
    B. Dragonfly
    C. Mosquito
    D. Housefly

    Submitted by: Irum perveen