1.

7) What is the oxidation number of oxygen in OF2, molecule?8) Name the metal used in detection of elements by Lassaigne's test.

Answer»

7.Oxygen almost always has an oxidation number of -2, except in H2O2 (when it is -1) and in OF2 (when it is+2). Hydrogen always has an oxidation number of +1 in compounds which contain elements that are more electronegative than it is.

8. Sodium metal is used in detection of elements by lassaignes methods



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