MCQ
Which of the following are lewis acids?
- AAg+
- B(SiF6)2-
- CBF3
- DO2-
Explanation:
(a) and (c) are Lewis acids.
Because they can accept electron.
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| Period number | Group number | |
| $P$ | $2$ | $15$ |
| $Q$ | $3$ | $2$ |
Then formula of the compound formed by $P$ and $Q$ element is
