Meso 2,3 -dibromo butane is treated with KI in acetone. The product formed is
(A) Cis but-2-ene
(B)Trans but-2-ene
(C) But-1-ene .
(D) Both (A) and (B).

Meso "2,3" -dibromo butane is treated with "KI" in acetone. The product formed is Cis but-2-ene Trans but-2-ene But-1-ene Both (A) and (b)

The product of the reaction But-2-ene+ NBr to ?

When cis-but-2-ene is treated with Br_(2) in "CCl"_(4) medium the product formed will be

2- bromopentane is heated with potassium ethoxide in ethanol the major product is (A) Trans - pent- 2- ene (B) 2- ethoxy pentane (C) Pent-1-ene (D) Cis pent - 2- ene

But-2-yne is reduced to trans-but-2-ene using