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प्रश्न
Give an example of a photochemical decomposition reaction.
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उत्तर
Photochemical decomposition reaction: Decomposition in presence of light.
\[\ce{\underset{\text{hydrogen per oxide}}{2H2O2}->[sun light]2H2O + O2}\]
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संबंधित प्रश्न
The reaction of iron nail with copper sulphate solution is ______ reaction.
(a) What is synthesis?
(b) What kind of chemical reaction is synthesis? Support your answer by an example.
(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.
2H2O2→ 2H2O + O2
Complete the table given below.
| Heat on Copper Nitrate | Colour of acidic gas evolved |
Define the following type of chemical change or reaction with a suitable example.
Direct combination reaction or synthesis
Define the following type of chemical change or reaction with a suitable example.
Displacement reaction or substitution reaction
Give a balanced equation for thermal decomposition of lead nitrate
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.
Match the chemical reactions in List I with the appropriate answer in List II.
| List I | List II |
| 1. \[\ce{AB⇌[heat]A + B}\] | A: Double decomposition |
| 2. \[\ce{AB->A + B}\] | B: Thermal dissociation |
|
3. \[\ce{X+Y- + AB+B- ->X+B- + A+Y-}\] |
C: Endothermic reaction |
| 4. \[\ce{X + YZ->XZ + Y}\] | D: Displacement reaction |
| 5. \[\ce{X + Y->[heat]XY - \Delta}\] | E: Decomposition reaction |
