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cloveb cloveb
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Posts: 782
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6 years ago
Which of the following statements best explains why 1-propyne can be deprotonated by the ethyl anion?

a) the acetylide anion is a stronger base than the ethyl anion.
b) ethane has a lower pKa than acetylene.
c) the lone-pair orbitals in acetylide anions have more s character than those in alkyl anions.
d) the lone-pari orbitals in acetylide aaions have more p character than those in alkyl anions.
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wrote...
#1
Staff Member
6 years ago
c

Explanation:

in acetylide ion lone pairs present on SP hybridized orbitals. where as in ethyl anion present onSP3 orbitals. first case is more favoured then second case.
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