Biogas contains:

(1) CO₂

(2) H₂S

(3) CH₄

(4) All of these

The technology of biogas production in india was

1 Imported from Japan

2 Imported from Denmark

3 Imported from USA

4 Developed in India due to efforts of IARI and KVIC

Given below are three statements (A-B) each with one or more blanks. Select the option which correctly fill the blanks in the statements Statements:

A. Microbes consume the major part of the organic matter in the effluent and reduce _________ of sewage.

B. Certain bacteria which grow anaerobically on cellulosic material, produce large amount of methane along with CO₂ and H₂. The bacteria are commonly called as _________ and one such common bacterium is _________. Options:

(1) A - CO₂ demand; B - methanogens, Methanobacterium

(2) A - Carbon; B - methanogens, Methanobacterium

(3) A - biochemical oxygen demand; B - methanogens, Methanobacterium

(4) A - biochemical oxygen demand; B - Methylokorus infemorum

Gases found in biogas are:
1. Carbon dioxide is the only gas
2. Methane is the only gas
3. Carbon dioxide, hydrogen sulphide and Methane
4. Carbon dioxide, hydrogen cyanide and Methane

Which of the following statements about methanogens is not correct?

Find out which one of the following statement is not correct with respect to gobar-gas plant?
1. It has a floating cover which keeps on rising as gas is produced
2. It is developed by IARI and KVIC
3. Main gas produced is butane, isobutene & propane
4. Spent slurry may be used as fertilizer

The residue left after methane production from cattle dung is:

1. burnt

2. burried in land fills

3. used as manure

4. used in civil construction

In the given diagram the gas X can be :

1. Hydrogen

2. Carbon monoxide

3. Ammonia

4. Oxygen

The mixture of gases released during anaerobic digestion of sludge is called:

(1) Methane

(2) Carbon dioxide

(3) Biogas

(4) Flammable gases

The technology of biogas production in India has been developed by the efforts of:

A. Khadi and Village Industries Commision (KVIC)

B. Indian Council of Agricultural Research (IARI)

C. Indian Agricultural Research Institute (IARI)

D. Indian Council of Medical Research (ICMR)

(1) A, C, D

(2) C, D

(3) A, C

(4) A, B