The stability of `+1` oxidation state increases in the sequence :A. `Ga lt In lt Al lt Tl`B. `Al lt Ga lt In lt Tl`C. `Tl lt In lt Ga lt Al`D. `In lt Tl lt Ga lt Al`

The stability of `+1` oxidation state increases in the sequence :A. `G

1.	The stability of `+1` oxidation state increases in the sequence :A. `Ga lt In lt Al lt Tl`B. `Al lt Ga lt In lt Tl`C. `Tl lt In lt Ga lt Al`D. `In lt Tl lt Ga lt Al`
Answer» Correct Answer - B Due to inert pair effect, `Ga, In`, and `Tl` exhibit `+1` as well as `+3` oxidation states. The stability of `+1` increases on moving down the group. `B` shows only `+3` oxidation state while for `Al, +1` state is unstable. The `+1` oxidation state is the most stable for `Tl`.

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The stability of `+1` oxidation state increases in the sequence :A. `Ga lt In lt Al lt Tl`B. `Al lt Ga lt In lt Tl`C. `Tl lt In lt Ga lt Al`D. `In lt Tl lt Ga lt Al`

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