A) CO
B) $ {F^{-}} $
C) $ B{F_3} $
D) $ P{F_3} $
শুদ্ধ উত্তৰ: C
ইলেক্ট্ৰন সমৃদ্ধ প্ৰজাতিসমূহক লুইছ ক্ষাৰক বোলে। দিয়াৰ ভিতৰত,
$ BF _3 $ এটা ইলেক্ট্ৰনৰ অভাৱ থকা প্ৰজাতি, গতিকে ইলেক্ট্ৰন দান কৰাৰ সলনি গ্ৰহণ কৰাৰ ক্ষমতা থাকে
সেয়েহে ই লুইছ ক্ষাৰক হোৱাৰ সম্ভাৱনা আটাইতকৈ কম। ই এটা লুইছ এছিড।
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