2)
A &
is obtained from sea
water, which is a raw material of
compound y. compound y is used to
Prepare compound z on
heating.
compound z is used
to softening
hard water.
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Answer:
(a) Sodium carbonate is used for softening hard water.
(b) Bleaching powder is the compound of calcium is used for disinfecting drinking water supply.
(c) Sodium carbonate is a metal compound that has detergent properties.
(d) Bleaching powder is one compound of calcium that is used for removing the colour of coloured cloth.
(e) It sets into a hard mass on mixing with proper quantity of water.
(f) The substance obtained by the action of chlorine on solid slaked lime is Bleaching powder.
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