Question

Bio gas is an excellent fuel justify the statement by giving two reasons .mention the main constituents of bio gas along with its percentage .

Answer 1

example of bio gas is gobar gas

Answer 2

============================================================

(i) It burns without smoke and leave no residue therefore causes no atmospheric pollution.

(ii)Its heating capacity is high, i.e. it has high calorific value. Main constituents of bio gas: The composition of bio gas varies depending upon the nature of organic matter feeding in’the digester and advanced waste treatment technology. The typical composition of bio gas is

Methane                                50 – 75%

Carbon dioxide                     25 – 50%

Nitrogen                                   0 – 10%

Hydrogen                                 0 – 1%

Hydrogen sulphide                0 – 3%

=============================================================