Question

classify into physical /chemical change 1) griding of wheat 2) cooking of food 3) sugar dissolve in water 4) evaporation of water 5) readucing shape of napthalene ball 6) spots of lemon juice on shabadi stone in kitchen 7) burning of cansle 8) acid rain 9) burning of magnesium 9) small piece of aluminum wire burnt 10) milk is boiled 11) formation of urine in body 12 ) respiration of CO2 gas 13) Drying the cloths

Answer 1

1. is physical change
2.is chemical change
3.is chemical change
4.is chemical change
5.is physical change
6.is chemical change
7.is chemical change
8.is chemical change
9.is chemical change
10.is chemical change
11.is chemical change
12.is chemical change
13.is physical change

Answer 2

P(physical change) C(chemical change)
P
C
C
C
P
C
C
C
C
C
C
C
P