Question

A reaction betwen ammonia and boron trifluoride is given below 

Identify the acid and base in the reaction. Which theory explain it?

Answer 1

1. In the above reaction BF₃ is an acid and NH is the base. 

2. Lewis concept explain it as follows

3. A Lewis acid is an electron deficient molecule and capable of accepting a pair of electrons and a Lewis base is electron rich molecule and capable of donating a pair of electrons.