Question

An element reacts with oxygen forming an oxide the oxide dissolves in water and turn blue litmus red is the element metal or non metal give reason for your answer

Answer 1

an unknown element x reacts in air to form its oxide y this y dissolves in water which turns blue litmus into redpredict whether x is a metal or a non metal. Answer: Non-metals react with air to form acidic oxides. X reacts with oxygen to form an oxide which ondissolving in water forms an acid.
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Answer 2

It is a nonmetal because it forms an acidic oxide and when it is dissolved in water an acid is formed and an acid turns blue litmus red. So a nonmetal oxide when dissolved in water will turn blue litmus red