An element X reacts with oxygen to form an oxide XO whose solution in water turns red litmus blue. Is X metal or non-metal give reasons for your answer?
The element X forms an oxide XO which turns red litmus to blue. A base turns red litmus blue. This shows that the oxide is basic, i.e., it contains some basic properties. As we all know that metal oxides form basic oxides. Thus, P is a metal.
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