Advertisements
Advertisements
प्रश्न
What is meant by the following term?
Decrepitation
Advertisements
उत्तर
It is the breaking of a substance usually accompanied by the emission of a crackling sound. An example of a substance that decomposes on heating is Lead nitrate, Pb(NO3)2.
APPEARS IN
संबंधित प्रश्न
Write a balanced equation for the action of heat on a mixture of copper and concentrated nitric acid.
Ammonia is used in the Ostwald process.
Name the oxidising agent used in this process.
How will you prepare the following from nitric acid?
Aqua regia
Name a metal nitrate which on heating is changed into metal oxide.
Name the Following:
Gas obtained by treating manganese with 1% nirtric acid.
Explain with the help of a balanced equation, the brown ring test for nitric acid.
Give reason for the following :
Nitric acid usually does not yield hydrogen from acids.
What do you observe when?
Conc. HNO3 drops on the skin of a person?
Explain why only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
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.
