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प्रश्न
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
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उत्तर
Direct Combination of two elements one of which is a neutral gas and the other a yellow non-metal
\[\ce{\underset{\text{sulphur yellow-non-metal}}{S} + \underset{\text{neutral gas}}{O2}->\underset{\text{sulphur dioxide}}{SO2}}\]
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संबंधित प्रश्न
Explain, giving one example of the following chemical changes:
Double decomposition
Explain, giving one example of the following chemical change:
Thermal dissociation
Decomposition brought about by heat is known as thermal decomposition. What is the difference between thermal dissociation and thermal decomposition?
Match the following:
|
a. Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g) |
i. Photochemical decomposition |
|
b. \[\ce{2AgCI(s) ->[Sunlight] 2Ag(s) + CI2(g)}\] |
ii. Thermal decomposition |
|
c. \[\ce{2KCI ->[Electricity] 2K + CI2}\] |
iii. Displacement reaction |
|
d. \[\ce{2HgO(s) ->[\Delta] 2Hg(s) + O(g)}\] |
iv. Electrolytic decomposition |
Decomposition reactions can occur by sunlight.
Give two balanced reactions.
State which of the substance given below evolve oxygen gas on thermal decomposition.
Lead nitrate
Define the following type of chemical change or reaction with a suitable example.
Displacement reaction or substitution reaction
Give a balanced equation for the following reaction of synthesis involving the formation of:
An alkali – from a basic oxide – sodium oxide
Differentiate between the following:
Decomposition reaction and a double decomposition reaction.
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 |
