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Question
Which of the following is not an example of a chemical reaction?
Which of the following is not an example of a chemical reaction?
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Solution
The correct option is D Melting of ice
The burning of firewood is a chemical reaction where due to the process of combustion, wood gets converted into ashes.
Rusting of iron is a chemical reaction where iron gets oxidised by the oxygen from air in the presence of moisture or water.
Bubbling of gas when the can of any carbonated drink is opened is also a chemical reaction. Here, the carbon dioxide gas is dissolved in water to form carbonic acid, at high pressure. But when the pressure is decreased, the carbon dioxide gets released forming bubbles on the surface.
The burning of firewood is a chemical reaction where due to the process of combustion, wood gets converted into ashes.
Rusting of iron is a chemical reaction where iron gets oxidised by the oxygen from air in the presence of moisture or water.
Bubbling of gas when the can of any carbonated drink is opened is also a chemical reaction. Here, the carbon dioxide gas is dissolved in water to form carbonic acid, at high pressure. But when the pressure is decreased, the carbon dioxide gets released forming bubbles on the surface.
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