Addition of charcoal to the filter bed of sand during wat...
Addition of charcoal to the filter bed of sand during water treatment for township supply is to?
prevent goiter
prevent tooth decay
remove odour
kill germs
Correct answer is C
Activated Carbon filters are excellent at removing chlorine and related poor taste and odor.
Which of the following molecules has a triple bond in its structure? ...
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Which of the following is used in the manufacture of bleaching powder? ...