Question

The stability of +1 oxidation state in group-13 increases down the group. Why?​

Answer 1

Down the group, the stability of the 1+ oxidation state in group 13 Increases because of the inert pair effect.

What is the Inert Pair Effect?

• 
  The Inability of the outermost s-orbital to take part in chemical bonding is known as the inert pair effect.
  
  
• The Nuclear charge increases and strongly hold the electron from participating in bonding.
  
  
• Elements like tin, lead, bismuth, etc exhibit the inert pair effect.
  
  
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