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 mass of water is produced when 8.0g of hydrogen reacts with excess oxygen? [H = 1, O = 16] ...
How many carbon atoms are there in a benzene ring? ...
The synthetic detergents are preferred to soap for laundry using hard water because? ...
An alkanol containing 60% carbon by mass would have a molecular formula [H=1.0. C-12.0, O= 16.0] ...
Which of the following separation processes is most likely to yield high quality ethanol (>95%) f...
Hardening of an oil may be achieved by? ...
What are the possible oxidation numbers of an element if its atomic number is 17? ...
The metal that does not give H2 on treatment with dilute HCL is ...
Which of the following salt solutions will have a pH greater than 7? ...