The reaction of Zinc with dilute and concentrated nitric acid ,respectively ,produces :

When zinc metal combines with dilute nitric acid, nitrous oxide, a colourless, non-flammable gas, is produced. Laughing gas is another name for it. Because it decreases the body’s response time when breathed, it’s mostly utilised for sedation and pain treatment. It has medicinal applications, including anaesthetic medicines. Concentrated nitric acid interacts with zinc metal to produce nitrogen dioxide gas in the second reaction. As a catalyst in various oxidation reactions, as a rocket fuel and explosion, and as a wheat bleaching agent, nitrogen dioxide is utilised. It appears as a reddish brown gas at higher temperatures. It has a bent form and is paramagnetic in nature. It is mostly generated during the combustion process when air is used as an oxidant.

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