Carbon and its compounds

Who discovered carbon dioxide?

• John Dalton

• Charles Adolphe Wurtz

• Jan Baptista van Helmont

Who studied the role of carbon dioxide in respiration?

• Irving Langmuir

• Wendell Meredith Stanley

• Antonie Lavoisier

• Theodor Svedberg

Carbon dioxide is the covalent compound of:-

[you can select more than one correct answer in this question]

• Oxygen

• Helium

• Carbon

• Nitrogen

Select the correct properties of carbon dioxide:-

• It is blue in colour

• It is non-poisonous gas

• It is lighter than air

• It is slightly acidic gas

When is the main oxide of carbon formed?

• During photosynthesis

• During erosion of soil

• during the combustion of hydrocarbon

  fuels

Carbon dioxide is__________, odourless ,______________

(a)  

Carbon Dioxide forms a snow-white solid called dry ice to-

• 64 degree Celsius

• - 78 degree Celsius

• -70 degree Celsius

True or False:- Carbon Dioxide is fairly soluble in Water

• True

• False

When this reaction happens?

• Addition of nitrogen in lime

• Addition of oxygen in lime

• Addition of exhaled carbon dioxide in lime

Carbon Dioxide constitutes about___________ of air volume.

• 20%

• 6%

• 0%

• 0.04%