Which oxide is the most basic among N2O3, P2O3, As2O3 and Bi2O3?

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NEET levelSingle correct optionDifficulty 1 of 3pn113

Which oxide is the most basic among $N X_{2} O X_{3}$ , $P X_{2} O X_{3}$ , $As X_{2} O X_{3}$ and $Bi X_{2} O X_{3}$ ?

A $N X_{2} O X_{3}$
B $Bi X_{2} O X_{3}$
C $As X_{2} O X_{3}$
D $P X_{2} O X_{3}$

Answer: B

Metallic character increases down group 15, so oxide character changes from acidic (N, P) through amphoteric (As, Sb) to basic. Bi2O3 is the basic oxide.

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Which oxide is the most basic among NX2​OX3​, PX2​OX3​, AsX2​OX3​ and BiX2​OX3​?

Answer: B

More questions on Trends in groups 15 and 16

Which oxide is the most basic among $N X_{2} O X_{3}$ , $P X_{2} O X_{3}$ , $As X_{2} O X_{3}$ and $Bi X_{2} O X_{3}$ ?