An alkene A undergoes addition with Hbr to give B. When B is heated with sodium in presence of dry Ether give 2,3 dimethylbutene. Identify A and B.

Which statement justifies that hydrogen peroxide (h2o2) is a polar molecule? the o – h bond is nonpolar and the molecule is asymmetric. the o – h bond is nonpolar and the molecule is symmetric. the o – h bond is polar and the molecule is asymmetric. the o – h bond is polar and the molecule is symmetric.