Which one of the following is a false statement about 13th group elements is

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Melting point of the Gallium is low

Thallium shows inert pair effect

Boron can easily form trivalent cations

Indium has the least IP1 value in 13th group

answer is C.

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Detailed Solution

Melting point of the Gallium is low(302K).Thallium shows inert pair effect, it is more stable in +1 state than in +3 state.Boron cannot form trivalent cations due to very high sum of IP1, IP2 and IP3 values.IP1 trend - B > Tl > Ga > Al > In.

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