An element X has a valency of 3.What is the molecular formula of its oxide.
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X_2O_3
Compound\xa0\’X\’ has valency 3 and \’O\’ has valency 2 . L.C.M of 3 & 2 is 6 .For X = 3 *\xa02\xa0= 6For O = 2 *\xa03 = 6Therefore\xa0{tex} X_{2}O_{3} {/tex} is the formula of oxide of \’X\’