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प्रश्न
State which of the substance given below evolve oxygen gas on thermal decomposition.
Ammonium dichromate
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उत्तर
Ammonium dichromate (NH4)2Cr2O7
On thermal decomposition, Ammonium dichromate is not evolved oxygen.
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संबंधित प्रश्न
State the type of reactions for the following represent and balance the ones that are not balanced.
PbO2 + SO2→ PbSO4
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.
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 |
The reaction can be classified as:
State which of the following type, take place in the reaction is given below.
\[\ce{4HNO3->4NO2 + 2H2O + O2}\]
Give a balanced equation for the following reaction of synthesis involving the formation of:
An alkali – from a basic oxide – sodium oxide
Convert nitrogen to ammonia by a direct combination reaction.
Explain the term double decomposition precipitation reaction.
Select the correct answer from the options given below:
State the gaseous product formed, when
A metallic nitrate undergoes thermal decomposition giving a coloured gas.
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.
