Question

illustrate with an example that physical and chemical can take place together

Answer 1

If we take a burning candle then both physical and chemical change takes place.
Physical change is reduction in size.
Chemical change is the evolvement of Co2 and chemical energy changes to light energy.

Answer 2

when a candle burns the physical change like the wax melts and the chemical change like the wax is evaporated. the chemical and physical change take place simultaneously in a candle