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Q.

An element 'X' which belongs to the first short period has the outer electronic configuration ns2np1. What is the formula and acid-base character of its oxide?

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a

XO3 basic

b

X2O3 amphoteric

c

X2O3 acidic

d

XO2 acidic

answer is C.

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Detailed Solution

X : Boron 2s22p1B2O3, oxides of non-metal are acidic in nature.
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