Question

state which of the following 1 to 5 pertain to Physical change
yersion of matter on ba
hemical change
1.
Burning of paper2.ringing of an electric bell
3. Curdling of milk
4.melting of butter
5.An electric light is switched 0n
​

Answer 1

Answer:

Answer:

1)ans= Chemical change.

2)ans= Physical change.

3)ans= Chemical change.

4)ans= Physical change.

5)ans= Physical change.

This are the correct answers.

Hope my answer helped.

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Answer 2

$\huge{\underline{{\sf{Question:-}}}}$

State which of the following is physical or chemical change.

1. Burning of paper

2. Ringing of an electric bell

3. Curdling of milk

4. Melting of butter

5. An electric light is switched on

$\huge{\underline{{\sf{Answer:-}}}}</p><p>$

☞ Burning If Paper: Chemical change as after the paper is burned, ash which is a new product is formed.

☞ Ringing of an electric bell: Physical change as no new product is formed and also the ringing of bell can stop.

☞ Curdling of Milk: Chemical change as after you curdle the milk, curd, which is a new product is formed.

☞ Melting Of Butter: Physical change as even after the butter gets melted, we can still freeze it.

☞ An electric light is switched on: Physical change as after the light is switched on you can off it and no new product is formed.

Learn More:-

The changes that can be reversed and do not involve the formation of new substance are physical changes.

The changes that cannot be reversed involve the formation of new substance are chemical changes.