Which of the following gas is used during complete
combustion of fuel?
a) carbon dioxide
b) nitrogen
c) carbon monoxide
d) oxygen
Explanation:Complete combustion occurs in an unlimited supply of air, oxygen in particular. Also, complete combustion is also known as clean combustion. Here the hydrocarbon will burn out completely with the oxygen and leave only two byproducts, water, and carbon dioxide. An example of this is when a candle burns.
Which of the following gas is used during incomplete combustion of fuel?
a) carbon dioxide
b) carbon monoxide
c) nitrogen
d) oxygen
Which of the following is/are produced during complete combustion of fuel along with carbon dioxide?
a) carbon particles
b) carbon monoxide
c) sulphur dioxide
d) both a and c
Explanation:Incomplete combustion occurs when the supply of air or oxygen is poor. Water is still produced, but carbon monoxide and carbon are produced instead of carbon dioxide. In general for incomplete combustion: hydrocarbon + oxygen → carbon monoxide + carbon + water. The carbon is released as soot.
What is/are the effect/s of release of unburnt carbon particles?
a) respiratory diseases
b) cause asthma
c) global warming
d) both a and b
What is/are the effect/s of release of carbon dioxide?
a) respiratory diseases
b) cause asthma
c) global warming
d) both a and b
Explanation:a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, CFCs, and other pollutants.
What is/are the effect/s of release of sulphur dioxide during the combustion of fuel?
a) poisonous gas that kills people
b) acid rain
c) global warming
d) all of these
Confusing. . . .
by at 2025-04-09 20:09:22