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प्रश्न
True or False – If False give the correct answer
Oxygen is necessary for combustion
विकल्प
True
False
उत्तर
Oxygen is necessary for combustion- True
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संबंधित प्रश्न
Combustion is a chemical reaction in which and substance react with ______.
A substance which reacts with oxygen giving heat is called a combustible substance. Which one of the following is a combustible substance?
Some words (underlined) in the following sentence is jumbled up. Write them in their correct form.
Seldie is a combustible substance.
Some words (underlined) in the following sentence is jumbled up. Write them in their correct form.
Some substances on combustion produce thea and mafel.
Fill in the blanks using the words given in the box.
| ignition | petrol | combustion | calorific value | combustible | combustible |
A chemical process in which a substance reacts with oxygen to give off heat is called ______.
Write True/False against the following statement and also correct the false statement.
A physical process in which a substance reacts with oxygen to give off heat is called combustion.
Write True/False against the following statement and also correct the false statement.
Increased concentration of nitrogen in air is believed to cause global warming.
Complete the oxidation reaction.
CH4+2O2 → ______+______+Heat energy.
Fill in the blanks using the words given in the box.
| ignition | petrol | combustion | calorific value | combustible | combustible |
Ignition temperature of ______ is lower than that of wood.
Fill in the blanks using the words given in the box.
| ignition | petrol | combustion | calorific value | combustible | combustible |
The amount of heat energy produced on complete combustion of 1 kg of a fuel is called its ______.
