tion:B is group 13 element. It forms hydride B B is group 13 element. It forms hydride B 2B is group 13 element. It forms hydride B 2B is group 13 element. It forms hydride B 2 H B is group 13 element. It forms hydride B 2 H 6B is group 13 element. It forms hydride B 2 H 6B is group 13 element. It forms hydride B 2 H 6 which is electron deficeint. The CENTRAL B atom has 6 valence electrons and can accept 2 electrons ( a lone pair, from a base) to complete its octet. HENCE, boron forms hydride which is Lewis acid. N is group 15 element. It forms hydride NH B is group 13 element. It forms hydride B 2 H 6 which is electron deficeint. The central B atom has 6 valence electrons and can accept 2 electrons ( a lone pair, from a base) to complete its octet. Hence, boron forms hydride which is Lewis acid. N is group 15 element. It forms hydride NH 3B is group 13 element. It forms hydride B 2 H 6 which is electron deficeint. The central B atom has 6 valence electrons and can accept 2 electrons ( a lone pair, from a base) to complete its octet. Hence, boron forms hydride which is Lewis acid. N is group 15 element. It forms hydride NH 3B is group 13 element. It forms hydride B 2 H 6 which is electron deficeint. The central B atom has 6 valence electrons and can accept 2 electrons ( a lone pair, from a base) to complete its octet. Hence, boron forms hydride which is Lewis acid. N is group 15 element. It forms hydride NH 3 which is electron rich. The central N atom has a lone pair of electrons that can be donated to a suitable Lewis acid. Hence, nitrogen forms hydride which is Lewis base.B is group 13 element. It forms hydride B 2 H 6 which is electron deficeint. The central B atom has 6 valence electrons and can accept 2 electrons ( a lone pair, from a base) to complete its octet. Hence, boron forms hydride which is Lewis acid. N is group 15 element. It forms hydride NH 3 which is electron rich. The central N atom has a lone pair of electrons that can be donated to a suitable Lewis acid. Hence, nitrogen forms hydride which is Lewis base.Note: Lewis acid is electron pair acceptor and Lewis base is electron pair donor.