Question 1

What is actual nitrogen?

Accepted Answer

Diatomic nitrogen gas (N₂)

Answer

Nitrogen oxide (NO)

Answer

Nitrous oxide (N₂O)

Answer

Nitrogen gas (N)

Question 2

Which form of nitrogen is most abundant in the Earth's atmosphere?

Accepted Answer

Diatomic nitrogen gas (N₂)

Answer

Nitrous oxide (N₂O)

Answer

Nitric oxide (NO)

Answer

Ammonia (NH₃)

Question 3

Which of the following is not a form of actual nitrogen?

Accepted Answer

Nitrogen oxide (NO)

Answer

Diatomic nitrogen gas (N₂)

Answer

Nitric oxide (NO₂)

Answer

Ammonium nitrate (NH₄NO₃)

Question 4

Which compound is commonly known as laughing gas?

Accepted Answer

Nitrous oxide (N₂O)

Answer

Nitric oxide (NO)

Answer

Nitrogen gas (N)

Answer

Ammonia (NH₃)

Question 5

Which form of nitrogen is commonly used as a fertilizer?

Accepted Answer

Ammonium nitrate (NH₄NO₃)

Answer

Nitrogen gas (N₂)

Answer

Nitrous oxide (N₂O)

Answer

Nitric oxide (NO)

Question 6

Which form of nitrogen is essential for the growth and development of living organisms?

Accepted Answer

Nitrate (NO₃^-)

Answer

Nitric oxide (NO)

Answer

Nitrogen gas (N₂)

Answer

Nitrogen dioxide (NO₂)

Question 7

Which process converts atmospheric nitrogen gas (N₂) into a form that can be utilized by plants?

Accepted Answer

Nitrogen fixation

Answer

Nitrogen assimilation

Answer

Nitrogen denitrification

Answer

Nitrogen nitrification

Question 8

Which compound is responsible for the depletion of the ozone layer in the stratosphere?

Accepted Answer

Nitrous oxide (N₂O)

Answer

Nitric oxide (NO)

Answer

Nitrogen gas (N₂)

Answer

Chlorofluorocarbons (CFCs)

Question 9

Which form of nitrogen is responsible for the brown color of decomposing leaves and organic matter?

Accepted Answer

Ammonium (NH₄⁺)

Answer

Ammonia (NH₃)

Answer

Nitrate (NO₃^-)

Answer

Nitrite (NO₂^-)

Question 10

Which form of nitrogen is released into the atmosphere through denitrification?

Accepted Answer

Nitrous oxide (N₂O)

Answer

Nitrite (NO₂^-)

Answer

Ammonium (NH₄⁺)

Answer

Nitrate (NO₃^-)

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