मराठी

Write one equation for decomposition reactions where energy is supplied in the form of electricity. - Science

Advertisements
Advertisements

प्रश्न

Write one equation for decomposition reactions where energy is supplied in the form of electricity.

टीपा लिहा
Advertisements

उत्तर

Decomposition reaction involving absorption of electrical energy,

  1. \[\ce{\underset{Alumina}{2Al2O3_{(l)}} ->[Electric current] \underset{Aluminium}{4Al_{(l)}} + \underset{Oxygen}{3O2_{(g)}}}\]
  2. \[\ce{2H2O_{(l)} ->[electricity] 2H2_{(g)} + O2_{(g)}}\]
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

What does one mean by exothermic reaction? Give example.


Give one example of a decomposition reaction which is carried out by applying heat.


What type of chemical reaction take place when lime-stone is heated?


Which of the following can be decomposed by the action of light?
(a) NaCl
(b) KCl
(c) AgCl
(d) CuCl


When a green iron salt is heated strongly, its colour finally changes to brown and odour of burning sulphur is given out.
(a) Name the iron salt.
(b) Name the type of reaction that takes place during the heating of iron salt.
(c) Write a chemical equation for the reaction involved.


Classify the following reaction as combination, decomposition, displacement, precipitation and neutralization. Also balance the equation.

\[\ce{Zn_{(s)} + H2SO4 -> ZnSO4_{(s)} + H2_{(g)}}\]


What do you mean by redox reaction ? Explain with the help of an example.


What does one mean by endothermic reaction? Give example.


Rewrite the following statement by selecting the correct option:
________________ is a decomposition reaction.

Differentiate between direct combination reaction and a decomposition reaction.


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.


Differentiate between the following:

Thermal decomposition and thermal dissociation.


The chemical reaction in which two or more products are formed from a single reactant is called ______ reaction.


On heating blue coloured powder of copper (II) nitrate, in a boiling tube, copper oxide (black), oxygen gas and a brown gas X is formed

  1. Write a balanced chemical equation of the reaction.
  2. Identify the brown gas X evolved.
  3.  Identify the type of reaction.
  4. What could be the pH range of aqueous solution of the gas X?

These consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:

Assertion: Silver bromide decomposition is used in black and white photography.

Reason: Light provides energy for this exothermic reaction.


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


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


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×