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ICSE Class 10 Chemistry Question 21 of 63

Study of Compounds — Nitric Acid — Question 8

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Question 3(2003)

Write the equation for the lab. preparation of HNO3 from potassium nitrate and conc. H2SO4

Answer

Below is the equation for the lab. preparation of HNO3 from potassium nitrate and conc. H2SO4:

KNO3[conc.]+H2SO4[conc.]→<200°CKHSO4[acid salt]+HNO3\underset{[conc.]}{\text{KNO}_3} + \underset{[conc.]}{\text{H}_2\text{SO}_4} \xrightarrow{\lt 200 \degree\text{C}} \underset{[acid \space salt]}{\text{KHSO}_4} + \text{HNO}_3