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Question

Organisms which obtain energy by oxidation of reduced inorganic compounds are

A
Photoautotrophs
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B
Saprotrophs
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C
Coproheterotrophs
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D
Chemoheterotrophs
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Solution

The correct option is C Chemoheterotrophs
Chemotrophs are those bacteria which depends on sunlight directly (chemoautotrophs) or indirectly (chemoheterotrophs) for their food. Chemoheterotrophs use inorganic molecules as a source of energy and convert into organic substances. They obtain energy by oxidation of reduced inorganic substances. They are unable to utilize carbon dioxide to form their own organic compounds.
Thus, the correct answer is 'Chemoheterotrophs.'

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