1. Read the following changes carefully. Write 'R' if a change is reversible or
"I if it is irreversible.
a. Making cold coffee
b. Converting red dried
chilies into chili
powder
c. Melting of a chocolate
d. A chick hatching
from an egg
e. Inflating a football
f. Wetting of clothes
g. Roasting of
groundnuts
h. Freezing of water to
form ice
i. Change in size
of eraser due to
overuse
j. A metal filament in a
toaster becoming red
hot on heating
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Answer:
1=r
2=I
3=r
4=I
5=I
6=r
7=I
8=r
9=I
10=I
hope it hlps u....