Please select a subject first
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Complete the following equation.
Mg3N2 + 6H2O →
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Complete the following equation.
8NH3 +3Cl2 →
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What are the main refrigerants used and how do they cause ozone deplation?
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What is the alternative of chlorofluorocarbon?
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State the advantages of using ammonia as refrigerant?
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Ammonia is a good refrigerant but it shows some disadvantages when used as refrigerant. State the disadvantages.
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Write the equation for the action of heat on ammonium chloride.
State whether the reaction is an example of thermal decomposition or thermal dissociation.
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Write the equation for the action of heat on ammonium nitrate.
State whether the reaction is an example of thermal decomposition or thermal dissociation.
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Comment, sulphuric acid is referred to as King of chemicals.
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Comment, sulphuric acid is referred to as oil of vitriol.
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Correct the following, if required:
HNO3 is a strong reducing agent.
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Correct the following, if required:
NaNO3 gives NO2 and O2 on heating.
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Correct the following, if required:
Constant boiling nitric acid contains 80% nitric acid by weight.
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Correct the following, if required:
Nitric acid remains colourless even when exposed to light.
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Name a nitrate of metal which on heating does not give nitrogen dioxide.
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Name a nitrate which on heating leaves no residue behind.
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From the following list of substances, choose one substance in each 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 nitrate which gives off only oxygen when heated
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What is the name given to the salts of sulphurous acid?
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From the following list of substances, choose one substance in each 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 nitrate which on heating decomposes into dinitrogen oxide [nitrous oxide] and steam.
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What is the name given to the salts of sulphuric acid?
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