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Question

Assertion : Nitrogen is an essential component of proteins, DNA and chlorophyll.
Reason : Plants and animals can utilize atmospheric nitrogen.

A
Assertion is false but Reason is true.
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B
Both assertion and reason are true and reason is the correct explanation of assertion.
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C
Both assertion and reason are true but reason is not the correct explanation of assertion.
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D
Assertion is true but Reason is false.
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Solution

The correct option is D
Assertion is true but Reason is false.

  • Nitrogen is a primary nutrient important for survival of all living organisms because it is an essential component of proteins, DNA and chlorophyll.
  • However Plants and animals cannot directly utilize atmospheric nitrogen.
  • They can use it only if it is in the form of ammonia, amino acids or nitrates.

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