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प्रश्न
Why is freshly prepared ferrous sulphate solution used in the ring test?
उत्तर
Freshly prepared ferrous sulphate solution is used in the ring test otherwise. Ferrous sulphate undergoes aerial oxidation and converts to ferric sulphate.
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संबंधित प्रश्न
Give two chemical equations for the following:
Nitric acid showing as acidic character.
Mention three important uses of nitric acid. Give the property of nitric acid involved in the use.
Explain with the help of a balanced equation, the brown ring test for nitric acid.
Name the Following:
Salt used in the laboratory to prepare nitric acid
Brown ring disappear if the test tube is disturbed.
Give reason for the following:
Nitric acid is used in purification of gold.
What do you observe when?
Concentrated nitric acid is dropped on a hot surface?
Give reason for the following:
In the laboratory preparation of nitric acid, the mixture of concentrated sulphuric acid and sodium nitatre should not be heated very strongly, above 200°C
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.
State, what is observe when nitric acid is kept in a reagent bottle for a long time.
