Question

Chemestry
Class - 9

Chapter - 2nd
is matter around us pure


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Answer 1

Answer:

(c) is the correct answer.

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Answer 2

Answer:

option b 2 3 2 1

Explanation:

rusting of iron is a Chemical change because it is a natural change we can't involve in that process

melting of wax is a physical change we involved in it

burning of candle is a Chemical Change because it I will burn after we get a ash that is called a chemodal change

baking of cake is a physical and Chemical change also because first we use it in clothes and after we get a dust of our clothes with the help of the cake