Question

extin
of oil
Burn
proc
to ur
1. How will you separate a mixture
containing kerosene and petrol
(difference in their boiling points
is more than 25°C), which are
miscible with each other?
2. Name the technique to separate
(0 butter from curd,
(ii) salt from sea-water,
(11) camphor from salt.
3. What type of mixtures are
separated by the technique of
crystallisation?
Che
cher
sub
a ch
anc
dis​

Answer 1

1 ans : A mixture of two miscible liquids having a difference in their boiling points more than 25 °C can be separated by the method of simple distillation.

2 ans : (i) Butter from curd can be separated by the technique of centrifugation. (ii) Salt from sea water can be separated by the technique of crystallization or by the evaporation. (iii) Camphor is sublimable but salt is not. So, camphor can be separated from salt sublimation technique

3 ans : CHKWhat type of mixtures are separated by the technique of crystallization? Answer: Homogeneous mixtures such as common salt solution and copper sulphate solution separated by technique of crystallization.