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प्रश्न
The nitrate salt which does not give a mixture of NO2 and O2 on heating is ______.
विकल्प
AgNO3
KNO3
Cu(NO3)2
Zn(NO3)2
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उत्तर
The nitrate salt which does not give a mixture of NO2 and O2 on heating is KNO3.
Explanation:
When heated, alkali metal nitrates, such potassium or sodium nitrates, melt and transform into colourless liquids that break down to release oxygen gas.
\[\ce{2KNO3->[Δ][]2KNO2 + O2↑}\]
संबंधित प्रश्न
Give a balanced chemical equation for Laboratory preparation of Nitric acid.
Ammonia is used in the Ostwald process.
Name the oxidising agent used in this process.
Write an equation for the following conversions A, B, C and D.
Give reason for the following:
Concentrated nitric acid is brown in colour.
Choose the correct answer from the option given below:
The catalyst used in the manufacture of HNO3 by Ostwald process is
Fill in the blank with appropriate word/words.
Aqua regia is a mixture of _______ and________
Why does pure nitric acid take on a yellowish brown colour when exposed to light?
The figure given below illustrates the apparatus used in the laboratory preparation of nitric acid:
(i) Name A (a liquid), B( a Solid) and C(a liquid).
(ii) write the balanced chemical equation to show how nitric acid undergoes decomposition.
(iii) Write the balanced chemical equation for the reaction in which copper is oxidized by concentrated nitric acid.
Why should the temperature of the reaction mixture of nitric acid not be allowed to rise above 200oC?
Identify the gas evolved when sulphur is treated with concentrated nitric acid.
