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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

Give a Balanced Equation for – an Electrolytic Decomposition Reaction Involving a Neutral Liquid - Chemistry

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प्रश्न

Give a balanced equation for –

An electrolytic decomposition reaction involving a neutral liquid

एका वाक्यात उत्तर
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उत्तर

Electrolytic decomposition of neutral liquid [water]
\[\ce{2H2O->[Electricity][Current]->2H2 + O2}\]

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पाठ 6: Chemical Reactions - Exercises

संबंधित प्रश्‍न

What does one mean by exothermic reaction? Give example.


What type of reaction is represented by the following equation?

2 FeSO4 → FeO3 + SO2 + SO3


What does one mean by endothermic reaction? Give example.


Identify the type of following reaction :


Study the following figure and answer questions. 

a) After heating Calcium carbonate, which gas is formed in a test tube?
b) When we pass this gas through limewater what change, did you observe?
c) Write down the chemical reaction showing the product formation after heating the Calcium carbonate.

 


Give a balanced equation for –

A thermal decomposition reaction involving heat on limestone [calcium carbonate]


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.


Which among the following statement(s) is (are) true?

Exposure of silver chloride to sunlight for a long duration turns grey due to

(i) the formation of silver by decomposition of silver chloride.

(ii) sublimation of silver chloride.

(iii) decomposition of chlorine gas from silver chloride.

(iv) oxidation of silver chloride.


The reaction of calcium carbonate, with freshly prepared lime water, is shown below:

Answer the questions with the help of a diagram:

  1. What type of reaction does calcium carbonate undergoes?
  2. What change in colour is observed in lime?
  3. Write the chemical equation.


Write the molecular formula of calcium carbonate.


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