Question

31. The statements given below are incorrect. Write the correct statements.
1. Solubility of a substance generally increases with the fall in temperature
2. Glowing of an electric bulb is an irreversible change
3. Digestion of food is a reversible change,
4. A change from liquid to solid state on cooling is called liquefaction​

Answer 1

Answer:

1. solubility of a substance increase with increase in temperature
2. glowing of bulb is a physical change