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The stability of `+1` oxidation state increases in the sequence :A. `Tl lt In lt Ga lt Al`B. `In lt Tl lt Ga lt Al`C. `Ga lt In lt Al lt Tl`D. `Al lt Ga lt In lt Tl` |
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Answer» Correct Answer - D Due to the inert pair effect, group `13` elements show `+1` oxidation state also besides the group oxidation state `+3`, and the stability of lower oxidation state, i.e. `+1`, increases down the group `(darr)`. |
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