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प्रश्न
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.
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उत्तर
Potassium nitrate
संबंधित प्रश्न
Ammonia is used in the Ostwald process.
Name the oxidising agent used in this process.
Give two chemical equations for the following:
Reactions of nitric acid with non-metals.
Give two chemical equations for the following:
Nitric acid showing as acidic character.
The chemical used in the brown ring test is ______.
Give reason for the following:
In laboratory preparation of nitric acid all the apparatus including cork should be made up of glass.
Give reason for the following:
Commercial nitric acid is yellow in colour, but when it is diluted with water, it turns colourless.
What do you observe when?
Concentrated nitric acid is dropped on a hot surface?
Why does pure nitric acid take on a yellowish brown colour when exposed to light?
Explain the following :
An all glass apparatus is used in the laboratory preparation of nitric acid.
A dilute acid B does not normally give hydrogen when reacted with metals but does give a gas when it reacts with copper. Identify B. Write the equation with copper.
