Question

2 Which of the following does not act as lewis acid ?
(1) BF3
(2) SnCl4
(3) CCl4
(4) SF4
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Answer 1

Correct option (c) CCl4 Explanation: Lewis acids are those molecules which can accept electron pair and those who can donate electron pairs are called Lewis base. CCI4 molecule does not have vacant d-orbital where it can accept pair of electrons so CCI4 cannot act as Lewis acid.