Questions
The method used to remove temporary hardness of water is
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By Expert Faculty of Sri Chaitanya
a
Calgon's method
b
Clark's method
c
Ion-exchange method
d
Synthetic resins method
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Correct option is B
Clark's method used to remove temporary hardness of water CaHCO32+Ca(OH)2→2CaCO3+2H2OMgHCO32+2Ca(OH)2→2CaCO3+Mg(OH)2+2H2O.
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H2O2 is a reducing agent in the reaction:
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