(A) Allylic
(B) Vinylic
(C) Aromatic
(C) Aldehydic
(A) More in concentrated alcohols
(B) More in dil alcohols
(C) Independent of concentration of alcohol
(D) None
(A) 1
(B) 2
(C) 3
(D) 4
(A) 4
(B) 7
(C) 6
(D) 16
(A) Hz
(B) cps
(C) Both A and B
(D) ppm