Which of the following statement is incorrect for a chemical reaction ? 1. Heat may be given out but never absorbed.2. Sound may be produced.3. A colour change may take place.4. A gas may be evolved.

Which of the following statement is incorrect for a chemical reaction

1.	Which of the following statement is incorrect for a chemical reaction ? 1. Heat may be given out but never absorbed.2. Sound may be produced.3. A colour change may take place.4. A gas may be evolved.
Answer» HEAT may be given out but NEVER absorbed. Explanation:it is the INCORRECT statement