L-isomer of tetrose gives positive Schiff’s test and has two chiral carbons. On acetylation ‘X’ yields triacetate. ‘X’ also undergoes following reactions.

L-isomer of tetrose gives positive Schiff’s test and has two chiral carbons. On acetylation ‘X’ yields triacetate. ‘X’ also undergoes following reactions.





The tetrose is giving Schiff's test means it has aldehyde group. The compound on reduction with give Chiral compound so compound can be identified as
. The compound can give triacetate on acetylation.


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