Question

Trichloride of a non metallic group of 13 acts as a Lewis acid towards ammonia. The element exhibits maximum covalency of four. Identify the element and write the reaction of its trifluoride with ammonia.... I need the answer fast... ​

Answer 1

The mentioned element is Boron. Reaction is given below -

• Boron is an element found in group 13 of periodic table. The trichloride of boron is electron deficient in nature, which makes it Lewis acid.

• The reaction of boron trifluoride with ammonia is as follows -

BF3 + NH3 --> F3BNH3

• In the reaction, ammonia has lone pair of electrons while BF3 is electron deficient. So, ammonia donates its pair of electrons to BF3 to form dipolar bond. The resultant product is adduct.

Answer 2

Thank you dear!

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