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.
What kind of bond exist between carbon and oxygen in C03 2-?...
The gas that is most useful in protecting humans against solar radiation is? ...
An element Z contains 80% of \(^{16} _8\)Z and 20% of \(^{18} _8\)Z. Its relative atomic mass is...
What is the chemical symbol for Zinc? ...
What is the percentage by mass of oxygen in Al2(SO4)3. 2H2O? [Al = 27, S = 32, H = 1, O = 16]...