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प्रश्न
Define the following type of chemical change or reaction with a suitable example.
Displacement reaction or substitution reaction
उत्तर
Displacement Reaction Or Substitution Reaction :
“Those reactions in which one element takes place of another element in a compound, are known as substitution reactions”.
\[\ce{\underset{\text{silver white}}{Zn} + \underset{\text{blus solution}}{CuSO4}->\underset{\text{colourless solution}}{ZnSO4} + \underset{\text{red brown}}{Cu}}\]
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संबंधित प्रश्न
(a) What is synthesis?
(b) What kind of chemical reaction is synthesis? Support your answer by an example.
Give an example of double displacement reaction, where a gas is evolved.
State which of the substance given below evolve oxygen gas on thermal decomposition.
Zinc carbonate
State which of the substance given below evolve oxygen gas on thermal decomposition.
Lead nitrate
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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.
\[\ce{AgNO3 + HCl->AgCl + HNO3}\]
Define the following type of chemical change or reaction with a suitable example.
Direct combination reaction or synthesis
Define the following type of chemical change or reaction with a suitable example.
Decomposition reaction
Give a balanced equation for a direct combination reaction involving:
Two elements – one of which is a neutral gas and the other a monovalent metal
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.
