Question

E XERCISE 1. b. c. A. Multiple Choice Questions (MCQ) Which of the following is not a characteristic of physical change? formation of new substance reversible temporary d. change in physical properties 2. A physical change involves no change in energy b. energy is absorbed energy is released d. none of these 3. Which of the following is not a chemical change? photosynthesis b. digestion d. 4. Which of the following is a characteristic of chemical change? permanent b. no energy change d. composition does not change C. tearing a paper rusting of iron a. reversible C. 26​

Answer 1

Answer:

1 st answer is d

2 answer is d

3 answer is digestion

4 answer is b