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प्रश्न
Differentiate between the following:
Synthesis reaction and a substitution reaction.
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उत्तर
Synthesis and substitution reaction:
- Synthesis reaction: “Is a chemical reaction in which two or more elements or an element and a compound or two compounds combine to form a new compound.”
\[\ce{2Al + 3Cl2->2AlCl3}\] - Substitution reaction: “Is a chemical reaction takes place when an element or radical (more reactive) replaces another element in a compound.”
\[\ce{A + BC->B + AC}\]
\[\ce{Mg + CuSO4->Cu + MgSO4}\]
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संबंधित प्रश्न
Explain, giving one example for each of the following chemical changes:
Displacement
Decomposition reactions can occur by heat.
Give two balanced reactions for each.
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
The reaction can be classified as:
State which of the following type, take place in the reaction is given below.
\[\ce{4HNO3->4NO2 + 2H2O + O2}\]
Give a balanced equation for thermal decomposition of lead carbonate
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 direct combination reaction between phosphorus and neutral gas.
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.
