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Give reason for the following observations:-
(a) The tendency for catenation decrease down the group in Group 14.13.
(b) The decreasing stability of+3 oxidations state with increasing atomic number in group (c)Molten aluminium bromide is a poor conductor of electricity.

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Masters in Chemistry with 2 year experience

a) Down the group atomic size increases, it is difficult for large size atoms to form stable bonds among themselves so down the group catination tendency decreases. b) Due to inert pair effect as we go down the group lower O.S. becomes more stable compared to higher ones, so +3 O.S . stability decreases...
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a) Down the group atomic size increases, it is difficult for large size atoms to form stable bonds among themselves so down the group catination tendency decreases.

b) Due to inert pair effect as we go down the group lower O.S. becomes more stable compared to higher ones, so +3 O.S . stability decreases and +1 increases.

c) AlBr3 is a covelent compound so in molten state it don't break into ions, thus it is poor conductor of electricity.

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Inert Pair Effect in Group 13
Inert Pair Effect in Group 13In the modern periodic table, the elements of the boron family present in group 13 are:Boron (B), Aluminium (Al), Gallium (Ga), Indium (In) and Thallium (Tl)Their general electronic...

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