19. Addition of Br2 to ( E )-hex-3-ene produces_________.
(A) A meso dibromide.
(B) A mixture of enantiomeric dibromides which is optically active.
(C) A mixture of enantiomeric dibromides which is optically inactive.
(D) (Z)-3,4-dibromo-3-hexene.
(E) ( E )-3,4-dibromo-3-hexene.
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