English

What type of chemical reaction takes place when electricity is passed through water?

Advertisements
Advertisements

Question

What type of chemical reaction takes place when electricity is passed through water?

Very Short Answer
Advertisements

Solution

 A decomposition reaction occurs when electricity is passed through water.

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Chemical Reactions and Equations - Exercise 2 [Page 61]

APPEARS IN

Lakhmir Singh Chemistry [English] Class 10
Chapter 1 Chemical Reactions and Equations
Exercise 2 | Q 16. (d) | Page 61

RELATED QUESTIONS

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


A solid substance P which is very hard is used in the construction of many buildings, especially flooring. When substance P is heated strongly, it decomposes to form another solid Q and a gas R is given out. Solid Q reacts with water with the release of a lot of heat to form a substance S. When gas R is passed into a clear solution of substance S, then a white precipitate of substance T is formed. The substance T has the same chemical composition as starting substance P.

  1. What is substance P? Write its common name as well as chemical formula.
  2. What is substance Q?
  3. What is gas R?
  4. What is substance S? What is its clear solution known as?
  5. What is substance T? Name any two natural forms in which substance T occurs in nature.

What type of reaction is represented by the following equation?

\[\ce{CaCO3 -> CaCO + CO2}\]


What type of chemical reaction is represented by the following equation?

\[\ce{X -> Y + Z}\]


A metal salt MX when exposed to light splits up to form metal M and a gas X2. Metal M is used in making ornaments whereas gas X2 is used in making bleaching powder. The salt MX is itself used in black and white photography.
(a) What do you think metal M is?
(b) What could be gas X2?
(c) Name the metal salt MX.
(d) Name any two salt solutions which on mixing together can produce a precipitate of salt MX.
(e) What type of chemical reaction takes place when salt MX is exposed to light? Write the equation of the reaction?


What are thermal decomposition reactions ? Explain with an example.


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

Classify the following reaction into different type:

\[\ce{2KClO3(s)->[\Delta] 2KCl(aq) + 3O2(g)}\]


Give a balanced equation for –

A double decomposition neutralization reaction involving an acid and a base


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


What is electrolysis?


Explain the reaction given in the figure.


Photolysis is a decomposition reaction caused by ______


The following reaction is used for the preparation of oxygen gas in the laboratory:

\[\ce{2KClO3_{(s)} ->[Heat] 2KCl + 3O2_{(g)}}\]

Which of the following statement about the reaction is correct?


Which of the following is an endothermic process?


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?

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.


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


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×