Question

24. When petrol, in the presence of oxygen gas, burns
inside the engine of a car, carbon dioxide and water are
produced. The temperature inside the engine becomes
very high. Which of the following statements is correct?
(a) The burning of petrol is an example of a physical
change.
(b) Heat energy is taken out from the surroundings.
(c) Oxygen and petrol are the reactants in this process.
(d) This process is triggered by light energy.​

Answer 1

Answer:

c

Explanation:

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Answer 2

The correct option is c.

• Petrol burns in presence of oxygen to produce carbon dioxide and water.
• In this reaction, petrol and oxygen are reactants and carbon dioxide and water are products.
• In this reaction, high heat is produced under the system.
• Thus the correct option is c that is "Oxygen and petrol are the reactants in this process."