A. Nitrogen + Hydrogen
B. Nitrogen + Carbon
C. Nitrogen + Oxygen
D. Oxygen + Carbon
E. None of these
Related Mcqs:
- The chemical name of Laughing gas is___________?
A. Nitric oxide
B. Nitrogen dioxide
C. Nitrogen pentoxide
D. Nitrous oxideSubmitted by: Iram Saleem
- The gas, commonly known as “laughing gas”, is
A. Carbon Dioxide
B. Sulfur Dioxide
C. Nitrous Oxide
D. Sodium Oxide - 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
- 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 aboveSubmitted by: Mansoor Ul Haque
- What is the main composition of the sun?
A. Oxygen and Ammonia
B. Hydrogen and Helium
C. Hydrogen and Oxygen
D. Methane and HydrogenSubmitted by: Umar Yaseen Ramay
- Composition of Ozone layer?
A. O1
B. O2
C. O3
D. O4Submitted by: Hasnain Ali
- Which of the gas is not known as green house gas?
A. Methane
B. Nitrous oxide
C. Carbon dioxide
D. HydrogenSubmitted by: Farjan Ahmed Soomro
- 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 sunSubmitted by: Muhammad Abdullah
- Which of the following circuit elements is used to ‘block’ DC in an electronic circuit ?
A. Resistances
B. Capacitance
C. Inductance
D. DiodeSubmitted by: Malik Asghar Hussain
- 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 theseSubmitted by: Abid Hussain
The correct answer to the question: "Laughing gas has chemical composition of following two elements ?" is "Nitrogen + Oxygen".
