Question

assertion : when metal react with oxygen which results the red litmus changes into blue.
reason : mostly metallic oxides are basic in nature . so they turn red litmus solution into blue .

Answer 1

Answer:

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Explanation:

The oxides of metal are basic in nature or in other words they react with acids to form salt and water. In the case of non-metals, they are acidic in nature to form acids when they dissolve in water. The sulphurous acid turns blue litmus paper red.