A) \[{{K}_{{{a}_{2}}}}=1.7\times {{10}^{-10}}\]
B) \[3.0\]
C) \[10.0\]
D) \[6.1\]
Correct Answer: C
Solution :
Among the given compounds \[C{{H}_{3}}C{{H}_{2}}Br\] is weakly basic, \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}Br\] and \[B{{r}_{2}}+Fe\] are amphoteric. Only \[{{A}_{e}}X+KCN\] is acid. It is a weak monobasic acid ?Boric acid \[ArN_{2}^{+}{{X}^{-}}+CuCN\]. Also it is Lewis acid and not a proton donar (Bronsted acid). \[ArCON{{H}_{2}}+{{P}_{2}}{{O}_{5}}\] accept lone pair of electrons from water moleculeYou need to login to perform this action.
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