Three pairs of compounds are given below. Identify that compound in each of the pairs which has group 13 elements in a more stable oxidation state. Give reason for your choice. State the nature of bonding also.

(i) TlCl₃,TlCl (ii) AlCl₃, AlCl (iii) InCl₃, InCl (iv) What are boranes? Give chemical equation for the preparation of diborane.

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alok kumar singh | Contributor-Level 10

5 months ago

(i) TlCl is more stable than TlCl₃, due to inert pair effect, +1 oxile. oxidation state.

(ii) AlCl3, Al³⁺ is more stable than aluminum ions in +1 state.

(iii) Due to the inert pair effect, +1 oxidation state is more stable than the +3 oxidation state. So, InCl is more stable than InCl_3.

(iv) Boranes correspond to alkane-like compounds of boron. They consist of boron and hydrogen. Most common borane existing is dibecane.

_{4BF3 + 3LiAlH4?2B2H6 + 3LiF + 3AIF3}

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