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प्रश्न
Convert hydrogen to hydrogen chloride by a direct combination reaction.
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उत्तर
By direct combination reaction:
Hydrogen to hydrogen chloride
\[\ce{H2 + Cl2->[diffused][sun light]\underset{\text{hydrogen chloride}}{2HCl}}\]
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संबंधित प्रश्न
State the type of reactions for the following represent and balance the ones that are not balanced.
2H2O2→ 2H2O + O2
Decomposition reactions can occur by electricity
Give balanced reactions.
Select the correct salt from list II which on thermal decomposition exhibits the change in colour from list I.
| List I | List II |
| 1. Light green to black | A: Copper carbonate |
| 2. White to yellow [heated state] | B: Hydrated Copper sulphate |
| 3. Blue to black | C: Copper nitrate |
| 4. Orange to green | D: Ammonium dichromate |
| 5. Blue to white | E: Zinc nitrate |
Define the following type of chemical change or reaction with a suitable example.
Decomposition reaction
Give a balanced equation for a direct combination reaction involving:
Two elements – one of which is a neutral gas and the other a yellow non-metal
Give a balanced equation for the following reaction of synthesis involving the formation of:
An alkali – from a basic oxide – sodium oxide
Define a thermal dissociation reaction with a suitable example.
State how displacement reaction represented.
Differentiate between the following:
Thermal decomposition & thermal dissociation.
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 |
