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Write the Phlogiston theory.

Important Questions on Chemical Reactions

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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
Which is the main atmospheric gas responsible for the Greenhouse Effect?
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
Sodium + Oxygen→ Sodium oxide is an example of _____ oxidation.
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
The process of burning in the presence of oxygen is called _____.
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
When magnesium burns in air, another compound is formed along with magnesium oxide. Name the compound. 
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
Which one is a supporter of combustion?
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen

Complete the analogies:

Oxide of iron (II) : _____ :: oxide of magnesium : MgO

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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
Which of the following does not involve a combustion reaction?
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
Magnesium forms _____ on reaction with oxygen.
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen

_____ reacts with metals and non-metals and forms their oxides.

(Sulphur, Nitrogen, Oxygen, Carbon dioxide, Lighter, Oxygen, Air pollution, CFCs)

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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
The chemical reaction in which a fuel burns to release energy is called _____. (combustion/ decomposition)
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
Burning of a magnesium ribbon in air takes place with 
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
Combustion is the process of
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
_____ is formed by the complete combustion of carbon. (Write the name of the compound)
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
Complete combustion of fuel takes place when
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
Fuels release their energy through a chemical reaction known as _____.
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
Any substance or medium which supports combustion is called _____ of combustion.
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
The process of burning of a hydrocarbon in the presence of air to give CO2, H2O, heat and light is known as _____. (Decomposition/ combustion)
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
_____ reaction is accompanied by the evolution of heat.
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
Fill in the blank with the correct options from the box.
The incomplete combustion of fuel gives off _____ gas.
Carbon dioxide Carbon monoxide Ignition temperature Water Low
Kilojoule per kg (kj/kg) Nuclear Spontaneous Hotter Blue, yellow
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Science>Chemistry>Chemical Reactions>Reactions with Oxygen
Which of these does not help in starting a fire?