Consider the following pairs of compounds : I. Both are enantiomers II. Both…

PYQ UPPSC LT Grade (Assistant Teacher) 2025

Consider the following pairs of compounds :

Two Fischer projections have CHO above and Ph below; the first has upper OH on the right and lower OH on the left, while the second has upper OH on the left and lower OH on the right.

I. Both are enantiomers II. Both are threo forms III. Both are diastereomers IV. Both are D and L pairs Which of the above statements are correct ?

  1. A.

    II, III and IV

  2. B.

    I, II and III

  3. C.

    I, II and IV

  4. D.

    I, III and IV

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