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प्रश्न
Explain,giving one example of the following chemical changes:
Reversible reaction
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उत्तर
Reversible reaction
A chemical reaction in which the direction of a chemical change can be reversed by changing the conditions under which the reaction is taking place is called a reversible reaction.
CuSO4.5H2O(s) ⇋ CuSO4(s) + 5H2O(g)
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संबंधित प्रश्न
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Complete and balance the following chemical equations:
Ba`"CI"_2` + `"H"_2"SO"_4` `→`
(aq.) (aq.)
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In a double decomposition precipitation reaction both the reactants must be ............ soluble.
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In a ............ change, new substances are formed.
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Temperature at which a liquid starts boiling is known as the boiling point of that liquid. True or false ?
Explain the following reaction with one suitable example of Double decomposition reaction.
Distinguish by heating the following in dry test tubs.
Copper Sulphate and copper carbonate
Match the chemical reactions in List I with the appropriate answer in List II.
| List I | List II | ||
| 1. | \[\ce{XY⇌[heat]X + Y}\] | A: | Displacement reaction |
| 2. | \[\ce{XY->X + Y}\] | B: | Double decomposition |
| 3. | \[\ce{X+Y- + A+B^-->X+B- + A+Y-}\] | C: | Endothermic reaction |
| 4. | \[\ce{X + YZ->XZ + Y}\] | D: | Thermal dissociation |
| 5. | \[\ce{X + Y->[heat]XY -\Delta}\] | E: | Decomposition reaction |
Write some materials prepared by chemical changes.
Assertion (A): Cutting paper into very small pieces is an irreversible change.
Reason (R): Physical changes are always reversible.
