Which of following can be used as a catalyst in the above reaction? – McqOptions

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1.	Which of following can be used as a catalyst in the above reaction?
A.	\[C{{l}^{-}}\]
B.	\[C{{H}_{3}}-\overset{O}{\mathop{\overset{\|\|}{\mathop{C}}\,}}\,-{{O}^{-}}\]
C.	\[Et{{O}^{-}}\]
D.	\[HSO_{4}^{-}\]
Answer» D. \[HSO_{4}^{-}\]

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