Assertion :Ammonia is converted into nitrate by soil bacteria like Nitrosomonas and Nitrobacter Reason: These nitrifying bacteria are photoautotrophs.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
Ammonia is oxidised to nitrite and nitrate ions by a group of soil inhabiting nitrifying bacteria e.g., Nitrosomonas and Nitrobacter.
The nitrifying bacteria obtain their energy from the oxidatuin of ammonium and nitrite ions called chemoautotrophs.
So, the correct answer is 'Assertion is correct but reason is incorrect'.

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