What salts of
calcium and magnesium cause temporary hardness of boiler feed water?
Chlorides
Bicarbonates
Nitrates
Sulphites
Bicarbonates
Temporary
hardness is a type of water hardness caused by the presence of dissolved
bicarbonate minerals (calcium bicarbonate and magnesium bicarbonate). The
presence of the metal cations makes the water hard.
Hence, the correct option is (B).
&Key Points:-
Permanent
hardness of water is caused when chlorides and sulfides of
calcium and magnesium are dissolved in water.
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