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Separation of components of mixtures
1.
2. Different methods of separation are used to get individual
components from a mixture. Separation makes it possible to
study and use the individual component of a mixture.
Heterogeneous mixtures can be separated into their respective
constituents by simple physical method like:- filtration, sieving,
handpicking that we use in our daily life. Sometimes special
techniques have to be used for the separation of the components
of a mixture.
5. I. Take a beaker and filled it half with water .
II. Put a watch glass on the mouth of the beaker .
III. Put few drops of ink on the watch glass .
IV. Now start heating the beaker . We don’t want
to heat the ink directly . You will see that
evaporation is taking place from the watch
glass .
V. Continue heating as the evaporation goes on
and stop heating when you do not see any
further change on the watch glass .
VI. You will see that the water from the ink is get
6.
7. Used in diagnostic
laboratories for blood
and urine tests .
Used in dairies and
homes to separate butter
from cream .
used in washing
machines to squeeze out
water from wet cloth .
14. The method of
distillation is used for
the separation of
components of a
mixture containing
two miscible liquids
that boil without
decomposition and
have sufficient
differences in their
boiling points .
15.
16. Fractional distillation
To separate a mixture
of two or more
miscible liquid for
which the difference
in boiling point is less
than 25 k, than
fractional distillation
is used.