why CHO group cannot be present in the middle of the carbon atom chain?
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because of the carbon valency is four it can't be present in middle because it already shares three bonds with hydrogen and oxygen and has only one more left...and so it placed at the terminal...
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Answer:
Yes,-CHO- cannot be present in the middle of the carbon chain.
Explanation:
In -CHO group the four valencies of carbon are satisfied by linking the group with one atom only, since three valencies of carbon are already as `-O(||)C-H`. Hence it cannot link with two carbon atoms to be present in the middle of a chain.
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