Chemistry · 2019
JEE Main · 9 January 2019, Shift 1 · Q46
Aluminium is usually found in +3 oxidation state. In contrast, thallium exists in +1 and +3 oxidation states. This is due to:
Aluminium is usually found in +$\displaystyle 3$ oxidation state. In contrast, thallium exists in +$\displaystyle 1$ and +$\displaystyle 3$ oxidation states. This is due to :
Official answer
(4)
inert pair effect
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JEE Main 2019 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.