Give an example to show that subtraction of complex numbers is not commutative.

Show that subtraction of rational number is not commutative.

True or False statements : Subtraction of matrice is commutative.

Give examples to show that friction is both a friend and a foe.

Give examples to show that friction is both a friend and a foe.

Give an example to show the effect of concentration of nitric acid on the formation of oxidation product.

Give examples to show that plastics are non -corrosive in nature.