1.

An element X forms the following compounds with hydrogen, carbon and oxygen:H2X, CX2, XO2, XO3​State the three valencies of element X which are illustrated by these compounds.

Answer» An element X forms the following compounds with hydrogen, carbon and oxygen:

H2X, CX2, XO2, XO3

​State the three valencies of element X which are illustrated by these compounds.


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