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# How is Nitrogen Prepared in the Laboratory? Write the Chemical Equations of the Reactions Involved. - CBSE (Science) Class 12 - Chemistry

ConceptP - Block Group 15 Elements Oxides of Nitrogen

#### Question

How is nitrogen prepared in the laboratory? Write the chemical equations of the reactions involved.

#### Solution

An aqueous solution of ammonium chloride is treated with sodium nitrite.

NH_4Cl_(aq) + NaNO_(2(aq)) -> N_(2(g)) -> + 2H_2O_((i)) + NaCl_((aq))

NO and HNO3 are produced in small amounts. These are impurities that can be removed on passing nitrogen gas through aqueous sulphuric acid, containing potassium dichromate.

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#### APPEARS IN

NCERT Solution for Chemistry Textbook for Class 12 (2018 to Current)
Chapter 7: The p-block Elements
Q: 5 | Page no. 207

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Solution How is Nitrogen Prepared in the Laboratory? Write the Chemical Equations of the Reactions Involved. Concept: P - Block Group 15 Elements - Oxides of Nitrogen.
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