Kerala SCERT Class 6 Science Chapter 9 Mix and Separate Question Answer Solution Here. Kerala Board Class 6 Students can find Here 9th Chapter Mix and Separate Notes provide by our Teacher. Important Question Answer from Chapter 9 Mix and Separate.
- Board- Kerala Board.
- Class – 6.
- Subject – Science Part 2
- Chapter – 9.
- Chapter Name – Mix and Separate.
- Topic – Question Answer Solution.
1) The smallest particle of a substance is
a) molecules
b) atoms
c) both
d) none.
ANS: a)molecules
2) If a substance contains only one type of molecules, is called as
a)pure substance
b)impure substance
c) mixture
d) none.
ANS: a)pure substance
(3) If there are more than one type of molecules present in a substance, is called
a)pure substance
b)impure substance
c) mixture
d) none.
ANS: c) mixture
4) In air, molecules present are
a) Nitrogen
b) Oxygen
c) Water vapour
d) Carbon dioxide
e) All the above.
ANS: e) All the above.
5) All solutions are
a)homogeneous mixtures.
b)heterogeneous mixtures.
c) both
d) none.
ANS: a) homogeneous mixtures.
6) In Soda, Constituent particles are
a) water
b) carbon dioxide.
c) both
d) none.
ANS: c) both
(7) Brass is mixture of
a) solid in solid
b)liquid in solid
c) both
d) none.
ANS: a) solid in solid
(8) for Filtering water, we use
a) Filter paper
b) Cloth piece
c) both
d) none.
ANS: c) both
(9) —– is the process of separating the constituent particles of a mixture using a sieve.
a) Decantation
b) Filtration
c) Evaporation
d) none.
ANS: b) Filtration
(10) ——– is the process by which a liquid absorbs heat and gets converted to vapour.
a) Decantation
b) Filtration
c) Evaporation
d) none.
ANS: c) Evaporation
(11)——– is the process of separating the clear liquid above after sedimentation of the components of a mixture.
a) Decantation
b) Filtration
c) Evaporation
d) none.
ANS: a) Decantation
Questions and answers.
(1) from Hand picking method, which substances we separates?
ANS: We separating stones from rice by Hand picking method.
(2) Which is the source of heat required to evaporate water in salt pans?
ANS: the sun
(3) Soda is which type of solution?
ANS: gas(carbon dioxide) in liquid(water).
(4) What is homogeneous mixture?
ANS: If a mixture exhibits the same property throughout, then it is called as homogeneous mixture.
(4) What is Heterogeneous Mixture?
ANS: If a mixture exhibits different properties in different parts, , then it is called as Heterogeneous Mixture.
(5) what is mixture?
ANS: If there are more than one type of molecules present in a substance, it is called as mixture.
Short questions and answers.
(1) Write examples of pure substances?
ANS: Examples are given below:
i) Salt
ii) Aluminium
iii) copper
iv) Potassium permanganate
v) oxygen
vi) Copper sulphate (Blue vitriol).
(2) Write examples of solutions and particles present in it?
ANS: the examples are given below:
Solution – Constituent particles
Brass – Zinc, Copper
Soda – Water, carbon dioxide
Glycerine dissolved in water – Glycerine, water
Air – Nitrogen, Oxygen, Carbon dioxide.