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MCQ on NMR spectroscopy: Page-5

Which of the following have more chemical shift

(A) Allylic

(B) Vinylic

(C) Aromatic

(C) Aldehydic

The chemical shift will be

(A) More in concentrated alcohols

(B) More in dil alcohols

(C) Independent of concentration of alcohol

(D) None

The number of peaks possible for the following compound in proton NMR spectroscopy is

(A) 1

(B) 2

(C) 3

(D) 4

The number of peak splitting of secondary proton in the above structure is

(A) 4

(B) 7

(C) 6

(D) 16

The coupling constant is measured in

(A) Hz

(B) cps

(C) Both A and B

(D) ppm