Question

Melting of wax is a physical change whereas the burning of candle is a chemical change?

Answer 1

because in melting of wax new subtance is not formed but in burning of candle new substance is formed.

Answer 2

chemical change : burning of wick ( that dhaaga thing between candles)

physical change : melting of wax , melting of wax is a physical change because it can be again converted to candle by freezing it

whereas the burning of wick can not be converted again..