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Question
When we burn a candle, which of the following changes occur?
When we burn a candle, which of the following changes occur?
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Solution
The correct options are
A Physical Change
B Chemical Change
Both Physical and Chemical changes occur.
Upon heating, the wax first undergoes the process of melting followed by burning. Here, melting is a physical change as the melted wax can again be obtained as solid wax upon the removal of heat, whereas, burning is a chemical change, as once the wax has been burnt, it cannot be obtained back in its original form.
A Physical Change
B Chemical Change
Both Physical and Chemical changes occur.
Upon heating, the wax first undergoes the process of melting followed by burning. Here, melting is a physical change as the melted wax can again be obtained as solid wax upon the removal of heat, whereas, burning is a chemical change, as once the wax has been burnt, it cannot be obtained back in its original form.
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