1. Tardigrade
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  3. Chemistry
  4. Ammonia is a Lewis base. It forms complexes with cations. Which one of the following cations does not form complex with ammonia ?

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Q. Ammonia is a Lewis base. It forms complexes with cations. Which one of the following cations does not form complex with ammonia ?

The p-Block Elements - Part2

Solution:

Ammonia is a Lewis base. It forms complexes with cations of transition elements. $Pb ^{2+}$ does not form a complex with ammonia as lead ( $P b$ ) is not a transition element. Lead ( $Pb$ ) is a $p$ - block element.