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प्रश्न
Define the following type of chemical change or reaction with a suitable example.
Double decomposition reaction
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उत्तर
Double decomposition reaction:
“Those reactions in which two compounds react by an exchange of ions to form two new compounds are called double displacement reactions”.
\[\ce{\underset{\text{silver nitrate}}{AgNO3} + \underset{\text{sodium chloride}}{NaCl}->\underset{\text{white ppt. (silver chloride)}}{AgCl} + \underset{\text{sodium nitrate}}{NaNO3}}\]
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संबंधित प्रश्न
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.
Washing soda
State which of the substance given below evolve oxygen gas on thermal decomposition.
Lead nitrate
Define the term – double decomposition – neutralization reaction.
State the double decomposition – neutralization reaction with a suitable representation.
Convert an insoluble base
Convert a soluble base to their respective soluble salts by neutralization reaction.
Give a balanced equation for the following type of reaction:
A soluble salt of lead formed from an insoluble base by double decomposition – neutralization.
Give a balanced equation for the following type of reaction:
A thermal decomposition reaction of a salt – which results in the formation of nitrogen gas.
Give a balanced equation for the following type of reaction:
A decomposition reaction of a salt which leaves behind a silvery metal.
