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Which of the following processes is a chemical change?
  • a)
    Melting of wax
  • b)
    Dissolving sugar in water
  • c)
    Photosynthesis
  • d)
    Beating aluminium to make aluminium foil
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Which of the following processes is a chemical change?a)Melting of wax...
Photosynthesis is a chemical change because it involves the transformation of carbon dioxide and water into glucose and oxygen, forming new substances. Melting wax and dissolving sugar in water are physical changes, while beating aluminium is a physical change that alters the shape but not the composition of the aluminium.
Community Answer
Which of the following processes is a chemical change?a)Melting of wax...
A is incorrect as it is still wax
b is incorrect as you can get it back by evaporation 
c is correct as when co2 +water is mixing a new material is being formed
d is incorrect as it is still aluminum foil
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Which of the following processes is a chemical change?a)Melting of waxb)Dissolving sugar in waterc)Photosynthesisd)Beating aluminium to make aluminium foilCorrect answer is option 'C'. Can you explain this answer?
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