Question
Question: An element X having configuration ns2np1 occurs in a short period of Modern periodic table. The form...
An element X having configuration ns2np1 occurs in a short period of Modern periodic table. The formula and nature of its oxide is :
A
XO3, amphoteric
B
XO3, acidic
C
X2O3, amphoteric
D
X2O3, basic
Answer
X2O3, amphoteric
Explanation
Solution
The element present in short period will be of 13th group (group no = 10+ 3 = 13 ) i.e. aluminium and its oxide will be Al2O3 which is amphoteric in nature; as react with acids as well as bases forming salt and water.