Laughing gas has chemical composition of following two elements ?

Related Mcqs:

1. The chemical name of Laughing gas is___________?

   A. Nitric oxide B. Nitrogen dioxide C. Nitrogen pentoxide D. Nitrous oxide Submitted by: Iram Saleem...

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

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

3. In the Composition of the earth, Aluminum is _______________?

   A. 27.5% B. 20.3% C. 14.5% D. 8.23% Submitted by: Mansoor Ul Haque...

4. The hard, solid rocks, whose composition or texture has been changed by heat or pressure in the Earth are called____________?

   A. Sedimentary rocks B. Metamorphic rocks C. Igneous rocks D. All of the above Submitted by: Mansoor Ul Haque...

5. What is the main composition of the sun?

   A. Oxygen and Ammonia B. Hydrogen and Helium C. Hydrogen and Oxygen D. Methane and Hydrogen Submitted by: Umar Yaseen Ramay...

6. Composition of Ozone layer?

   A. O1 B. O2 C. O3 D. O4 Submitted by: Hasnain Ali...

7. 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...

8. 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...

9. Which of the following circuit elements is used to ‘block’ DC in an electronic circuit ?

   A. Resistances B. Capacitance C. Inductance D. Diode Submitted by: Malik Asghar Hussain...

10. Which one of the following elements the drum of a Photostat machine is made up of: _________?

    A. Aluminium B. Selenium C. Barium D. None of these Submitted by: Abid Hussain...