(a) SiF _4 (b) SF _4 (c) FeCl _3 (d) NH _3 - Vidyadip

Question

(a) $SiF _4$
(b) $SF _4$
(c) $FeCl _3$
(d) $NH _3$

✓

Answer

(d) $NH _3$
Reason: $NH _3$ is a Lewis base whereas others are Lewis acid.

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