Which of the following is not true about Biogas?

It contains methane

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Burns without smoke

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Leaves ash behind

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Produced by anaerobic decomposition of animal and plant waste

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Solution

The correct option is A Leaves ash behind
Higher the methane content, higher the calorific value. Pure $C H_{4}$ has a Gross Calorific Value of 39.8 $M J / m^{3}$ . the rate of combustion of biogas is quite high as it is produced by anaerobic decomposition of animal and plant waste.
It does not leave any ash behind after burning as cow dung and other organic matter is used in the preparation of biogas.

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Similar questions

Which of the following statements about anaerobic respiration in plants is not true?

One of the following is not required in the formation of biogas in a biogas plant. This is :
(a) cow-dung (b) water (c) oxygen (d) anaerobic bacteria

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