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Nitrogen and hydrogen combine to form am...

Nitrogen and hydrogen combine to form ammonia under high temperature and pressure conditions this is an example of

A

biological `N_(2)` fixation

B

natural `N_(2)` fixation

C

industrial `N_(2)` fixation

D

electrical `N_(2)` fixation

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The correct Answer is:
C
In industrial or abiological nitrogen fixation, ammonia is produced industrially by direct combination of nitrogen with hydrogen (obtained from water) at high temperature and pressure. It is then changed into various types of fertilisers including urea.
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NCERT FINGERTIPS-MINERAL NUTRITION-Mineral Nutrition
  1. One example of a nutrient in its reduced form is

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  2. The process of conversion of atmospheric free N(2) gas to nitrogenous ...

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  3. Nitrogen and hydrogen combine to form ammonia under high temperature a...

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  4. Decomposition of organic nitrogen of dead plants and animals into ammo...

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  5. Nitrite is oxidised to nitrate with the help of

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  6. Nitrifying bacteria

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  7. Identify the labels X and Y in the given outline of N(2) cycle and sel...

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  8. Nitrogen is absorbed by plants in form of

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  9. The process of conversion of soil nitrates into free N(2) is called (I...

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  10. The process that is the opposite of nitrogen fixation is

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  11. Match column I with column II and select the correct option from the g...

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  12. Which one of the following is a free-living obligate anaerobic bacteri...

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  13. The limiting factor in nitrogen fixation of soil is

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  14. All N(2) fixers belong to

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  15. The largest resevoir of nitrogen on earth is

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  16. if by radiation all nitrogenase enzyme is inactivated, then there will...

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  17. A farmer adds Azotobacter culture to soil before sowing maize. Which m...

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  18. is a free-living N(2)-fixing aerobic bacterium.

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  19. Which of the following is a non-symbiotic nitrogen fixing prokaryote?

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  20. Which of the following is a free-living nitrogen fixing cyanobacteria?

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