Q.

L-isomer of tetrose X (C4H8O4) gives positive Schiff’s test and has two chiral carbons. On acetylation, 'X' yields triacetate. ‘X’ also undergoes the following reactions.

'A'HNO3'X'NaBH4'B'chiral compound

‘X’ is _______                                                       [2023]

1  
2  
3  
4  

Ans.

(4)