Questions
Which of the following statements is not true
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a
Boron is a non-metal while all other statements of group-13 are metals
b
Boron tri chloride acts as a Lewis Acid
c
Boron does not form the Hydrated B3+ ion
d
The stability of the +1 oxidation state decreases down the group where as +3 increases
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Correct option is D
The stability of the +1 oxidation state increases down the group. This is because of the participation of only P-electron . The two S-electrons (S2) do not take part in the chemical reaction (Inert pair effect)For example TlCl more stable then TlCl3 . Because In TlCl Tl+1 is more stable then Tl+3 due to Inert Pair effect.Talk to our academic expert!
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