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Question
Explain the following reaction with one suitable example of Decomposition reaction
Solution
Decomposition reaction : In this reaction a substance breaks up on heating to form two or more simpler substances, e.g. Electrolysis of water.
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RELATED QUESTIONS
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NaOH + ............... `→` NaCI + ...................
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| 1 . `H_2` + `CI_2` `→` 2HCI | a. displacement reaction |
| 2. `2FeCI_3`+ `H_2` `→` `2FeCI_2` +2HCI` | b. addition of an electronegative redical |
| 3. Fe + `CuSO_4` `→``FeSO_4` +Cu` | c. removal of an electronegative redical |
| 4. `2H_2O` +`4NO_2`+`O_2` `→` `4HNO_3` | d.reduction by adding hydrogen |
| 5. 3Fe +`3CI_2` `→` `2FeCI_3` | e.electrolysis of water |
| 6. `FeCI_3`+ 3NaOH `→``Fe(OH)_3``↓`+NaCI | F.double decomposition,precipitation reaction |
| 7.`2H_2O` `→` `2H_2``↑`+`O_2` | e. combination or synthesis reaction |
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The basic conditions necessary for a chemical reaction is _______
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- Effervescence or gas evolved
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- Formation of a precipitate.
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Calcium hydroxide.
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______ is a natural indicator.
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Vanaspati is obtained from vegetable oils by the addition of ______ to the oils.
