Question

2. Which of the following are the physical changes?
Photosynthesis, Preparing sugar solution from
, Melting of wax​

Answer 1

Answer:

The melting of the solid wax to form liquid wax and the evaporation of liquid wax to form wax vapour are physical changes. The burning of the wax vapour is a chemical change...

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Answer 2

Answer:

melting of wax is a physical change

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