MCQ
Among the following the strongest nucleophile is
- ✓${C_2}{H_5}SH$
- B$C{H_3}CO{O^ - }$
- C$C{H_3}N{H_2}$
- D$NCCH_2^ - $
✓
Answer
Correct option: A.
${C_2}{H_5}SH$
a
(a) Nucleophiles are those substances which can donate a pair of electrons. These can be neutral or negative. The nucleophilic power depends on the tendency of species to donate electrons. This is more, when an electron pushing group ($+I$ group) is present. Among the alkyl groups, those having higher number of $C$ - atoms will push more, hence ethyl $> $ methyl.
(a) Nucleophiles are those substances which can donate a pair of electrons. These can be neutral or negative. The nucleophilic power depends on the tendency of species to donate electrons. This is more, when an electron pushing group ($+I$ group) is present. Among the alkyl groups, those having higher number of $C$ - atoms will push more, hence ethyl $> $ methyl.
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