Question

which of the following chemical change
a) growth of plant
b)rusting of iron
c) mixing of iron filling and sand
d) cooking of food
e) digestion of food
f) freezing of water
g) burning of a candle​

Answer 1

Explanation:

Rusting of iron c. Mixing of iron filings and sand d. ... Growth of a plant, rusting of iron, cooking of food, digestion of food, and burning of candle are chemical changes because here the chemical composition of the substance changes.

Answer 2

Answer:

Which of the following chemical change :-

)a growth of plant

b)rusting of iron

c) mixing of iron filling and sand

d) cooking of food✔✔✔

e) digestion of food

f) freezing of water

g) burning of a candle