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प्रश्न
Give a reason why nitrogen is filled in food packets and not oxygen.
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उत्तर
Nitrogen being inert or unreactive is filled into food packets to drive out the oxygen and reduce bacterial growth. The food package then stays well preserved.
संबंधित प्रश्न
Answer the question put against the following constituents of air :
Carbon dioxide : “Although carbon dioxide plays no role in respiration, all life would come to an end if there is no carbon dioxide in air.” Support this statement with relevant facts.
Statement given below is incorrect. Write the correct statement :
Carbon dioxide gas allows the earth to radiate out heat rapidly.
Tick (√) the most appropriate answer.
A gas which dilutes the activity of oxygen in air is:
Complete the statement given below by filling in the blank with the correct word from the words given below
The ______ is a layer which extends up to about 10-50 km. above the earth.
Name the following:
The main, rare (inert) gas present in air.
Of the total volume of air – 4/5th is nitrogen. State the utility or consequence of this ratio.
Can you guess why fire extinguishers throw a stream of carbon-di-oxide while putting - off the fire?
Carbon dioxide with water changes
Air also contains a small amount of carbon-di-oxide, water vapour, and some other gases like argon,
The solid form of CO2 is called dry ice which undergoes condensation.
