Which one among the following statements is correct ?

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Q: 23 (CAPF/2011)

Which one among the following statements is correct ?

question_subject: 

Science

question_exam: 

CAPF

stats: 

0,69,50,11,69,10,29

keywords: 

{'chemical change': [0, 0, 3, 7], 'physical change': [0, 0, 0, 1], 'physical changc': [0, 0, 0, 1], 'chemical changc': [0, 0, 0, 1], 'melting': [0, 0, 0, 1], 'candle': [0, 0, 0, 2], 'burning': [1, 0, 1, 2], 'same kind': [0, 0, 0, 1], 'ice': [0, 0, 1, 0]}

Option 1: This statement is incorrect. Melting of ice and burning of a candle do not represent the same kind of chemical change. Melting of ice is a physical change, whereas burning of a candle is a chemical change.

Option 2: This statement is correct. Melting of ice is a physical change because it does not result in the formation of new substances. When ice melts, it changes from a solid state to a liquid state, but the chemical composition of the water molecules remains the same. On the other hand, burning of a candle is a chemical change because it involves the combustion of the wax and releases heat, light, and carbon dioxide. The burning of a candle results in the formation of new substances.

Option 3: This statement is incorrect. Melting of ice is a physical change, not a chemical change. Burning of a candle, on the other hand, is a chemical change, not a physical change.

Option 4: This statement is incorrect. Melting of ice and burning of a candle do not represent the same kind of physical change. Melting of ice is a physical change, whereas burning of a candle is a chemical change.