Question

0.8. If two substances are brought in contact, it will result in-
(a) a physical change only.

(b)by a chemical change only

(c) a chemical change if they are heated together otherwise a physical change

(d) either a physical or a chemical change, depending on the conditions​

Answer 1

Explanation:

the answer will be (d).

we cannot say if it is chemical or physical change which is going to occur in such a condition.