te for true statement and 'F' for false statements :
1. Baking of roti is a physical change.
2. Burning of a paper is a chemical change.
3. Rusting of iron is a physical change,
4. A new substance is formed in a chemical change.
5. To separate colloidal particles centrifugation is used.
6. Fractional distillation is used to separate the components of air.
7. Compounds are made of atoms of elements in a definite proportion by volume
8. The mixture of ethanol and water can be separated by using separating funnel.
9. Colloidal particles pass through the ordinary filter papers.
10. The constituents of a mixture retain their identity,
11. Milk is a compound
12. Compound is the simplest form of matter.
13. Mixture of kerosene and water can be separated by using a separating funnel.
14. The various components of petroleum are obtained by fractional distillation method.
15. Crystals of pure copper sulphate are obtained by the process of crystallization.
16. The intermolecular forces in alcohol are weaker than those of water.
17. Alum is used as coagulant,
18. Aeration does not kill the micro-organisms.
19. Curd is an example of gel.
20. Milk is an example of foam.
Answers
Answered by
0
Answer:
1.f
2.t
3.f
4.t
5.f
6.f
7.t
8.f
9.t
10.t
11.f
12.f
13.t
14.t
15.t
16.f
17.t
18.t
19.t
20.f
Explanation:
plz mark me brainliest and follow me
Similar questions