p-Block Elements-I - Result Question 12

####12. Among the following, the correct statement(s) is(are)

(2017 Adv.)

(a) Al(CH3)3 has the three-centre two-electron bonds in its dimeric structure

(b) The Lewis acidity of BCl3 is greater than that of AlCl3

(c) AlCl3 has the three-centre two-electron bonds in its dimeric structure

(d) BH3 has the three-centre two-electron bonds in its dimeric structure

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Answer:

Correct Answer: 12. (b, d)

Solution:

  1. (a)

(b) BCl3 is stronger Lewis acid than AlCl3 due to greater extent of pπpπ back bonding in AlCl3.

(c)

(d)



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