Give an example reaction for the following:

Base + amphoteric metal -- complex ion + hydrogen gas

Base + ammonium salt -- ammonia gas

Question

Give an example reaction for the following:

Base + amphoteric metal --> complex ion + hydrogen gas

Base + ammonium salt --> ammonia gas

mathslover · Answer

Base = NaOH 
Amphoteric metal : Alluminium 

Al + 3NaOH -> ... ?

mathslover · Answer

Can you tell me what will be formed here?

mathslover · Answer

Al + NaOH = ?

anonymous · Answer

Na[Al(OH)4] + H2   ??

mathslover · Answer

No .. dear Al is less reactive reactive then Na hence it will not be able to displace Na from NaOH ..

mathslover · Answer

that's why i asked you this

anonymous · Answer

Oh... so I'm not quite sure what the complex ion would be :S

anonymous · Answer

Does it involve [Al(OH)4]-1 ?

mathslover · Answer

First of all the valency of Al is 3+ and OH is 1- 

so $$\large{Al_1(OH)_3=Al(OH)_3}$$