1.

F is.

Answer»

`H-UNDERSET(O)underset(||)(C)-underset(OH)underset(|)(C)H-underset(O)underset(||)(C)-underset(O)underset(||)(C)H`
`H-underset(O)underset(||)(C)-underset(O)underset(||)(C)-OH`

SOLUTION :


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