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Fill in the blanks

(a) A colloid is a ——— mixture and its components can be separated by
the technique known as ———.
(b) Ice, water and water vapour look different and display different ——
properties but they are ——— the same.
(c) A mixture of chloroform and water taken in a separating funnel is mixed
and left undisturbed for some time. The upper layer in the separating
funnel will be of——— and the lower layer will be that of ———.
(d) A mixture of two or more miscible liquids, for which the difference in
the boiling points is less than 25 K can be separated by the process
(e) When light is passed through water containing a few drops of milk, it
shows a bluish tinge. This is due to the ——— of light by milk and the
phenomenon is called ——— . This indicates that milk is a ———

Sciences - Exemplar Problems

Chapter 2. Is Matter Around Us Pure


A} hetrogeneous and centrifugation
b] physical and chemically
c} choloform and water
d} distillation
e} scattering,tyndall effect,collidal{because it is a mixture of two components and cannot be seperated}
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