Question

Organic compounds are made up of all EXCEPT which of the following elements? carbon oxygen hydrogen none of the above


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Answer 1

Oxygen is a non-organic element. (Excuse me as I've forgotten why it's non-organic.)

Answer 2

Answer: Oxygen

Explanation: All the organic compounds contain carbon and hydrogen as major elements.

Rest other elements such as sulfur, phosphorous, oxygen and many more elements can be present in organic compounds but its is not mandatory to have any of them.

So, presence of oxygen does not defines that a compound is organic compound.