he high resolution proton nmr spectrum of ethyl ethanoate 
, contains
A two triplets and one doublet.
B one triplet, one doublet and one singlet.
C one quartet, one triplet, and one singlet.
D one quartet and two triplets.
The only correct answer is C
A is not correct because this is the number of protons on each atom.
B is not correct because it is the number of protons on the
carbons in the ethyl group and a singlet for the first methyl group.
D is not correct because there is a quartet for the CH2 but only
one triplet for a methyl group.The other methyl gives a singlet.
