On lightening the candle, the candle burns and gives light. Which of the following statement/(s) about it is incorrect?
A
Burning of a candle is an irreversible change.
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B
Melting of the candle wax is a reversible change.
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C
Burning of a candle is a reversible change.
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D
Melting of the candle wax is an irreversible change.
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Solution
The correct options are C Burning of a candle is a reversible change. D Melting of the candle wax is an irreversible change. Burning of a candle in an irreversible change because we cannot get back the burnt wick of the candle whereas melting of the candle wax is a reversible change as we can solidify the melted wax.