Which is not a electrophile [RPET 1999]

1.	Which is not a electrophile [RPET 1999]
A.	\[AlC{{l}_{3}}\]
B.	\[B{{F}_{3}}\]
C.	\[{{(C{{H}_{3}})}_{3}}{{C}^{+}}\]
D.	\[N{{H}_{3}}\]
Answer» E.

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Which is not a electrophile [RPET 1999]

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