Question

15:Which of the following statements is incorrect for a chemical reaction? *



(a) Heat may be given out but never absorbed

(b) Sound may be produced ,

(c) A colour change may take place

(d) A gas may be evolved​

Answer 1

Which of the following statement is incorrect for a chemical reaction?

I thik answer is (b) sound may be prouduced

Answer 2

Answer:

(a) Heat may be given out but never absorbed

Explanation:

During chemical reaction heat may be absorbed or given out hence option (a) is a wrong statement.