CHEMICAL CHANGE vs PHYSICAL CHANGE


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Chemical and physical change

1 / 17

A change in which the original substance cannot be called back is called a ___ change.

2 / 17

Milk into curd is a physical change or a chemical change?

3 / 17

Boiling of water is a

4 / 17

Burning of a fuel or wood is a

5 / 17

Ozone absorbs ultraviolet radiations coming from the sun and breaks down to form oxygen. The breaking down of ozone into oxygen is a _____ change.

6 / 17

Water cycle in nature is a ______ change.

7 / 17

A Change in which the original substance can be got back is called __________ change

8 / 17

Burning of a paper is a ____ change

9 / 17

Iin chemical changes new substances are formed

10 / 17

Burning of magnesium ribbon is a physical change.

11 / 17

Physical changes are irreversible and chemical changes are reversible.

12 / 17

Which of these is not a chemical change?

13 / 17

Melting a wax is a ___ change but burning a wax is a ____ change.

14 / 17

Rusting of iron is a ____ change.

15 / 17

Mixing baking soda (soda Bicarbonate) and vinegar

16 / 17

When wax is heated it melts into a liquid and on cooling the wax solidifies. What kind of change it is?

17 / 17

Permanent change in colour may take place in a ____ change.

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The average score is 66%

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