1.

Which of the following compounds (s) undergo disproportionation in aqueous solution ?A. `TlCl_(3)`B. `GaCl`C. `InCL`D. `TlCl`

Answer» Correct Answer - B::C
Group `13` elements can exhibit `+1` and `+3` oxidation states due to the inert pair effect. Stability of `+1` oxidation state increases down the group, i.e. `TiCl` will be a stable and will undergo disproportionation.


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