Question

In which condition does the change acquire?
a) heating a substance
b) cooloing a substance
c) mixing a substance with another substance
d) all of these ​

Answer 1

d)all of these

heating and cooling are physical changes while mixing is a chemical change. hope u get it :-)

Answer 2

The answer is (d)

Whenever we heat, cool or mix a substance with another substance, there is a change in the physical and chemical properties of the substance, hence (d) is the correct option.

hope it's helpful : )