Question

B. Underline the correct answer.
1. Which of the following is a chemical change?
a. melting of ice
b. breaking of glass
c. making of chapati
d. all of the above
2. Which of the following changes cannot be reversed?
a. freezing of water
b. heating of chocolate
c. stretching a rubber band
d. burning of candle
3. When
you
heat a metal rod, it will:
a. expand permanently
b. expand and change shape
c. expand but come back to original shape on cooling
d. none of the above​

Answer 1

Answer: 1) c. Making of chapati

              2) d. Burning of candle

              3) c. Expand but come back to original shape on cooling

Explanation:

Answer 2

Answer:

1) (c)

2) (d)

3) (c)

Explanation:

Hope it helps