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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 8

Give a Balanced Equation for the Following Type of Reaction: a Thermal Decomposition Reaction in Which a Metallic Nitrate Decomposes to Give – a Basic Oxide.

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प्रश्न

Give a balanced equation for the following type of reaction:

A thermal decomposition reaction in which a metallic nitrate decomposes to give – a basic oxide.

एक पंक्ति में उत्तर
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उत्तर

\[\ce{2Ca[NO3]2->[\Delta]\underset{\text{Basic oxide}}{2CaO} + 4NO2 + O2}\]

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अध्याय 6: Chemical Reactions - Objective type questions

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विराफ जे दलाल New Simplified Middle School Chemistry [English] Class 8
अध्याय 6 Chemical Reactions
Objective type questions | Q 3.3

संबंधित प्रश्न

What type of reaction is represented by the digestion of food in our body?


What type of reaction is represented by the following equation?

\[\ce{NH4Cl -> NH3 + HCl}\]


What type of chemical reaction takes place when silver bromide is exposed to sunlight?


Which of the following can be decomposed by the action of light?


Two metals X and Y form the salts XSO4 and Y2SO4, respectively. The solution of salt XSO4 is blue in colour whereas that of Y2SO4 is colourless. When barium chloride solution is added to XSO4 solution, then a white precipitate Z is formed along with a salt which turns the solution green. And when barium chloride solution is added to Y2SO4 solution, then the same white precipitate Z is formed along with colourless common salt solution.

  1. What could the metals X and Y be?
  2. Write the name and formula of salt XSO4.
  3. Write the name and formula of salt Y2SO4.
  4. What is the name and formula of white precipitate Z?
  5. Write the name and formula of the salt which turns the solution green in the first case.

Give a scientific reason.

When the gas formed on heating limestone is passed through freshly prepared lime water, the lime water turns milky.


A student wants to study a decomposition reaction by taking ferrous sulphate crystals. Write two precautions he must observe while performing the experiment. 


Classify the following reaction into – 

  1. Direct combination 
  2. Decomposition
  3. Displacement
  4. Double decomposition

The reaction is – Zinc hydroxide on heating gives zinc oxide and water.


What is observed when silver chloride is exposed to sunlight? Give the type of reaction involved.


Write one equation for the decomposition reaction where energy is supplied in the form of light.


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