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प्रश्न
Give reason for the following:
Commercial nitric acid is yellow in colour, but when it is diluted with water, it turns colourless.
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उत्तर
Commercial nitric acid is yellow in colour because of presence of nitrogen dioxide but when it is diluted with water, it turns colourless because nitrogen dioxide get dissolved in water.
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संबंधित प्रश्न
Write balanced chemical equations for Action of hot and concentrated Nitric acid on copper
Name a metal nitrate which on heating is changed into metal oxide.
The nitrate salt which does not give a mixture of NO2 and O2 on heating is ______.
What is the purpose of Conc. H2SO4 in the above preparation?
Choose the correct answer from the option given below :
Concentrated nitric acid oxidises phosphorus to :
State the conditions for the oxidation of ammonia to nitrogen monoxide [nitric oxide], in the manufacture of nitric acid by Ostwald's process. Write the balanced equcation for the reaction.
Write the balanced equation for the equation preparation of nitric acid from potassium nitrate.
What happens when
NH3 solution is added to CuSO4 solution drop by drop and then in excess.
Write the equation for the reaction of dilute nitric acid with copper.
From the following list of substances, choose one substance in the case which matches the description given below:
Ammonium nitrate, calcium hydrogen carbonate, copper carbonate, lead nitrate, potassium nitrate, sodium carbonate, sodium hydrogen carbonate, zinc carbonate.
A Substance that gives off only oxygen when heated.
