1.

C_(8)H_(16)O_(6)(P)overset(O_(3))underset(Zn,H_(2)O)toC_(4)H_(8)O_(4)(Q) overset("Molisch")underset("reagent")toviolet colour ring structure of P cannot be

Answer»

`underset(OH)underset(|)(CH_(2))-underset(OH)underset(|)(CH)-underset(OH)underset(|)(CH)-CH=CH-underset(OH)underset(|)(CH)-underset(OH)underset(|)(CH)-underset(OH)underset(|)(CH_(2))`

`underset(OH)underset(|)(CH_(2))-underset(OH)underset(|)(CH)-underset(OH)underset(|)(CH)-CH=CH-underset(OH)underset(|)(CH)-underset(OH)underset(|)(CH)-underset(OH)underset(|)(CH)-CH=O`
`HO OC-CH_(2)-underset(OH)underset(|)(CH)-CH=CH-underset(OH)underset(|)(CH)-CH_(2)-CO OH`

Solution :carbohydrate (`ALPHA`-HYDROXY carbonyl) GIVES test with molisch reagent.


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