Question

Tick (✓) the most appropriate answer : --
1. The constituents of a mixture are present in --
(a) fixed ratio
(b) any ratio
(c) in the ratio of 4:1
(d) none of these
2. The constituents of a compound can be separated by --
(a) physical means only
(b) chemical means only
(c) both physical and chemical means
(d) none of these
3. Milk is --
(a) pure substance
(b) element
(C) mixture
(d) a chemical compound
4. A mixture of sand in water is an example of --
(a) heterogeneous mixture
(b) homogeneous mixture
(c) homogeneous solution
(d) chemical compound
5. When a mixture is formed --
(a) a physical change takes place
(b) a chemical change takes place
(c) both physical and chemical changes take place
(d) none of these

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Answer 1

Answer:

1 a

2 c

3 b

4 b

5 a

Explanation:

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Answer 2

Answer:

1.b) any ratio

2.c) both physical and chemical

3.a) pure substance

4.b) homogeneous mixture

5.a) a physical change takes place