Question

What is not true for a Mixture?

a) Made of more than one substance

b) Retains the properties of constituent elements

c) The constituents elements are present in a fixed ratio

d) Requires energy changes for its formation



An example of Suspension is:

a) Air

b) Mixture of sand and water

c) Mixture of alcohol and water

d) All of these



Chemical changes are accompanied by:

a) Energy changes b) Formation of new compounds c) Both of these d)

None of these


A mixture of alcohol and water can be separate by:

a) Sublimation b) Distillation c) Crystallisation d)

Evaporation



Which among the following is a Chemical Change?

a) Burning of coal b) Vaporisation of alcohol c)Melting of wax

d)Painting of Aluminium




Distillation is used to separate:

a) Solid Solutes b) Liquid Solutes c) gaseous solutes d) All

the above​

Answer 1

1) Requires energy changes for its formation

2)All of these

3)None ofthese

4)Distillation

5) a, c, and d

6) liquid solutes....

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Answer 2

1.b
2.c
3.c
4.d
5.b
6.b