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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) What is synthesis?
(b) What kind of chemical reaction is synthesis? Support your answer by an example.
State the type of reactions for the following represent and balance the ones that are not balanced.
2H2O2→ 2H2O + O2
State the type of reactions for the following represent and balance the ones that are not balanced.
NH4Cl → NH3 + HCl
What is a decomposition reaction?
State which of the substance given below evolve oxygen gas on thermal decomposition.
Lead nitrate
Give a balanced equation for the following reaction of synthesis involving the formation of:
An acid – from sulphur dioxide gas
Name a metallic oxide which on thermal decomposition is reduced to metal.
Complete the statement by filling in the blank with the correct word:
Direct combination reaction of sulphur dioxide with water gives ________.
Complete the statement by filling in the blank with the correct word:
Formation of hydrogen chloride from hydrogen and chlorine is an example of __________.
Give a balanced equation for the following type of reaction:
A decomposition reaction of a salt which leaves behind a silvery metal.
