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प्रश्न
Define the following type of chemical change or reaction with a suitable example.
Decomposition reaction
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उत्तर
Decomposition Reaction:
“Those reactions in which a compound splits up into two or more simpler substances”.
\[\ce{\underset{\text{calcium carbonate (lime stone)}}{CaCO3}->[\Delta][Decomposition]\underset{\text{Calcium oxide (quick lime)}}{CaO} + CO2}\]
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संबंधित प्रश्न
State the type of reactions for the following represent and balance the ones that are not balanced.
PbO + 2HNO3→ Pb(NO3) + 2H2O
On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.
A coloured substance which decomposes violently leaving a coloured residue and evolving two neutral gases one of which is unreactive or inert in nature.
State which of the substance given below evolve oxygen gas on thermal decomposition.
Ammonium dichromate
State which of the substance given below evolve oxygen gas on thermal decomposition.
Anhydrous copper sulphate
The reaction can be classified as:
State which of the following type, take place in the reaction is given below.
\[\ce{2Mg + O2->2MgO}\]
The reaction can be classified as:
State which of the following type, take place in the reaction is given below.
\[\ce{SO2 + 2H2O + Cl2->2HCl + H2SO4}\]
Convert nitrogen to ammonia by a direct combination reaction.
Define a displacement reaction with a suitable example.
Give a balanced equation for the preparation of two different insoluble lead salts from their salt solutions by double decomposition precipitation.
Convert a soluble base to their respective soluble salts by neutralization reaction.
