The gas which is added to air by decay or fermentation is ___________.

Oxygen

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Carbon dioxide

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Nitrogen

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None of these

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Solution

The correct option is D Carbon dioxide
Decaying or fermentation is the process in which carbon dioxide gas is released into the atmosphere by decomposition of product.

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Similar questions

Q. Carbon dioxide is a byproduct of the fermentation reaction.

(a) Name the acid formed when sulphur dioxide dissolves in water.

(b) Name the gas released when sodium carbonate is added to a solution of sulphur dioxide.

Manisha took some vinegar in a test tube and added some baking powder to it . Then she lit a matchstick and brought it near the mouth of the test tube . The flame of the matchstick got extinguished.

Which of the following is correct conclusion regarding the given experiment .

(A) Carbon dioxide gas does not support burning .

(B) Air contains carbon dioxide .

(D) Oxygen gas can extinguish fire .

State true or false.
Carbon dioxide is added to the atmosphere by the decay of organic matter.

Q. A scientist performed experiments to analyse the two samples of air given to him:
'Air Sample A' and 'Air Sample B'. The results of analysis of these two air samples are given below:

Air Sample A			Air Sample B
Oxygen	:	21%	Oxygen	:	16.4%
Carbon dioxide	:	0.04%	Carbon dioxide	:	4.4%
Water vapour	:	A little	Water Vapour	:	A lot

(a) Which air sample, A or B, represents 'exhaled air'? Why?
(b) Which air sample, A or B, represents 'inhaled air'? Why?

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The gas which is added to air by decay or fermentation is ___________.

The correct option is D Carbon dioxideDecaying or fermentation is the process in which carbon dioxide gas is released into the atmosphere by decomposition of product.

The correct option is D Carbon dioxide
Decaying or fermentation is the process in which carbon dioxide gas is released into the atmosphere by decomposition of product.