A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
E) If the assertion is false but reason is true
Correct Answer: D
Solution :
Chemosynthetic bacteria are without photosynthetic pigments. For the synthesis of their own organic food, (carbohydrates), they obtain carbon from \[C{{O}_{2}}\] of the atmosphere, necessary energy from oxidation of inorganic or organic compounds, such as hydrogen sulphide \[({{H}_{2}}S),\] ferrous compounds \[(F{{e}^{2+}}),\] molecular hydrogen \[({{H}_{2}})\] ammonia \[(N{{H}_{3}})\] and nitrites \[(N{{O}_{2}}-).\]
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