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प्रश्न
Explain, giving one example for each of the following chemical changes:
Displacement
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उत्तर
Displacement
It is a chemical change in which a more active element displaces a less active element from its salt solution.
CuSO4 + Zn → ZnSO4 + Cu
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संबंधित प्रश्न
(a) Define the neutralization reaction with an example.
(b) Give a balanced equation for this reaction.
(c) Give three applications of neutralization reactions.
State the type of reactions for the following represent and balance the ones that are not balanced.
PbO2 + SO2→ PbSO4
State the type of reactions for the following represent and balance the ones that are not balanced.
KNO3 + H2SO4 → HNO3 + KHSO4
State the type of reactions for the following represent and balance the ones that are not balanced.
PbO + 2HNO3→ Pb(NO3) + 2H2O
What is a decomposition reaction?
State which of the substance given below evolve oxygen gas on thermal decomposition.
Zinc nitrate
Give a balanced equation for thermal decomposition of ammonium dichromate
Complete the statement by filling in the blank with the correct word:
The neutral gas evolved when lead nitrate undergoes thermal decomposition is _________.
Select the correct answer from the options given below:
State the gaseous product formed, when
A metallic nitrate undergoes thermal decomposition giving a coloured gas.
Differentiate between the following:
Thermal decomposition & thermal dissociation.
