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8/11/2019 17 CH203 Fall 2014 Lecture 17 October 14.pdf
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CH203 Fall 2014 NMR Practice Quiz
1. Consider the 1H NMR spectrum below
a. How many types of hydrogen are present, assuming no serious overlap between differenttypes? _____
b. What is the chemical shift of the hydrogen type that is most shielded? ______
c. Consider the multiplicity, which derives from spin-spin coupling. What best describes themost shielded hydrogen type?____Singlet____Doublet____Triplet____Quartet
____Doublet of doublets
d. What does this multiplicity indicate about the most shielded hydrogens? _____There is one hydrogen present at this position _____There are two hydrogens present at this position _____There are three hydrogens present at this position _____There are two hydrogens on the neighboring carbon _____There are three hydrogens on the neighboring carbon
e. If the molecular formula of the compound is C 3H7Br, what does the integration show about themost shielded hydrogens?
_____There is one hydrogen present at this position _____There are two hydrogens present at this position
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