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प्रश्न
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.
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उत्तर
Thermal decomposition of salt with the formation of nitrogen gas.
\[\ce{\underset{\text{ammonium dichromate (orange)}}{(NH4)2Cr2O7}->[\Delta]\underset{\text{chromic oxide (green)}}{Cr2O3} + 4H2O + \underset{\text{nitrogen gas}}{N2}}\]
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संबंधित प्रश्न
State the type of reactions for the following represent and balance the ones that are not balanced.
2HgO → 2Hg + O2
State the type of reactions for the following represent and balance the ones that are not balanced.
2H2O2→ 2H2O + O2
What is a decomposition reaction?
Decomposition reactions can occur by heat.
Give two balanced reactions for each.
On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.
A coloured substance which decomposes violently leaving a coloured residue and evolving two neutral gases one of which is unreactive or inert in nature.
State which of the substance given below evolve oxygen gas on thermal decomposition.
Anhydrous copper sulphate
Explain the term double decomposition precipitation reaction.
Define the term – double decomposition – neutralization reaction.
Complete the statement by filling in the blank with the correct word:
The neutral gas evolved when lead nitrate undergoes thermal decomposition is _________.
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 |
