Chemistry - ALCOHOL & ETHER Question with Solution | TestHub

(A) Vicinal diol under acidic conditions undergoes pinacol rearrangement, forming a more stable ketone via carbocation shift → product given is correct.

(B) With conc. H₂SO₄ and heat, alcohol undergoes E1 dehydration → forms most substituted (Zaitsev) alkene → correct major product.

(C) 1,2-diol again gives pinacol rearrangement in acidic medium → ketone formation is correct.

(D) Though dehydration occurs, the shown alkene is not the most stable (major) product (rearrangement/position issue).