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Which of the Following Bases Cannot Deprotonate Acetylene? You Are

Question 30

Multiple Choice

Which of the following bases cannot deprotonate acetylene? You are given the pKa values of the conjugate acids in parentheses. CH3NH−(pKa=40) CO32−(pKa=10.2) CH2=CH−(pKa=44) (CH3) 3CO−(pKa=18) \mathrm { CH } _ { 3 } \mathrm { NH } ^ { - } \left( \mathrm { p } K _ { a } = 40 \right) \quad \mathrm { CO } _ { 3 } ^ { 2 - } \left( \mathrm { p } K _ { a } = 10.2 \right) \quad \mathrm { CH } _ { 2 } = \mathrm { CH } ^ { - } \left( \mathrm { p } K _ { a } = 44 \right) \quad \left( \mathrm { CH } _ { 3 } \right) _ { 3 } \mathrm { CO } ^ { - } \left( \mathrm { p } K _ { a } = 18 \right)
I \quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad II \quad\quad\quad\quad\quad\quad\quad\quad\quad III \quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad IV


A) Only I and II
B) Only I and III
C) Only II and III
D) Only II and IV

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