For the following questions answer them individually
Aqua regia also known as royal water or king’s water which can dissolve noble metals gold and platinum is a mixture of :
(a) Hydrochloric acid | (b) Nitric acid |
(c) Hydro bromic acid | (d) Sulphuric acid |
Heparin is an anticoagulant found in blood and it prevents blood clotting within blood vessels and it is preduced mainly from:
Identify the correct statements from the following:
(a) CFCs are responsible for depletion of Ozone layer.
(b) Water vapour, methane, $$CO_2$$, CFCs, nitrous oxide are green house gases.
(c) The BOD value of pure water is 100 ppm.