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Irreversible Change

Which of the ...

Question

Which of the following are chemical changes?

(a) Growth of a plant

(b) Rusting of iron

(c) Mixing of iron fillings and sand

(d) Cooking of food

(e) Digestion of food

(f) Freezing of water

(g) Burning of candle

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Solution

The following changes are chemical changes:

(a) Growth of a plant

(b) Rusting of iron

(d) Cooking of food

(e) Digestion of food

(g) Burning of candle

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Similar questions

Q. Which of the following are chemical changes?

(a)

Growth of a plant

(b)

Rusting of Iron

(c)

Mixing of iron fillings and sand

(d)

Cooking of food

(e)

Digestion of food

(f)

Freezing of water

(g)

Burning of a candle.

Q. Question 11
Which of the following are chemical changes?
a. Growth of a plant
b. Rusting of iron
c. Mixing of iron filings and sand
d. Cooking of food
e. Digestion of food
f. Freezing of water
g. Burning of a candle

Q. Question 11
Which of the following are chemical changes?
a. Growth of a plant
b. Rusting of iron
c. Mixing of iron filings and sand
d. Cooking of food
e. Digestion of food
f. Freezing of water
g. Burning of a candle

Which of the following are physical changes and which are chemical changes?

(a) Burning of a magnesium wire

(b) Freezing of water

(c) Rusting of iron

(d) Glowing of an electric bulb

Q. Which of the following are physical changes and which are chemical changes ?
Burning of candle wax, Melting of candle wax, Mixing of iron filings and sand, Burning of wood, Breaking a piece of chalk, Burning a piece of paper, Cutting a piece of paper.

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