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A) \[{{(C{{H}_{3}})}_{3}}N\]
B) \[B{{F}_{3}}\]
C) \[\overset{+}{\mathop{N{{O}_{2}}}}\,\]
D) \[C{{H}_{3}}-\overset{+}{\mathop{C}}\,=O\]
Correct Answer: A
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