Normally metals react with dilute acid to form a salt and evolve hydrogen gas but I have read that hydrogen gas is not evolved when a metal reacts with nitric acid (because Nitric acid is a strong oxidizing agent). It instead oxidizes the hydrogen evolved to water and itself gets reduced to any of the nitrogen oxides (NX2O or NO or NOX2). Then how to write the equation for the reaction of calcium with dilute nitric acid.
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