1.

Arrange the general steps for the purification of water in a sequence. (a) Filtration(b) Chlorination (c ) Sedimentation (d) Addition of chemicals

Answer»

a C b d
c a b d
c d a b
a b d c

Solution :(i) Sedimentation
(ii) Addition of CHEMICALS
(iii) FILTRATION
(IV) Chlorination


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