English

What type of reaction is represented by the following equation? CaCOA3⟶CaCO+COA2 - Science

Advertisements
Advertisements

Question

What type of reaction is represented by the following equation?

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

One Line Answer
Advertisements

Solution

Decomposition reaction by the action of heat.

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Chemical Reactions and Equations - Exercise 2 [Page 45]

APPEARS IN

Lakhmir Singh Chemistry (Science) [English] Class 10
Chapter 1 Chemical Reactions and Equations
Exercise 2 | Q 15.1 | Page 45

RELATED QUESTIONS

The white solid compound A decomposes quite rapidly on heating in the presence of a black substance X to form a solid compound B and a gas C. When an aqueous solution of compound B is reacted with silver nitrate solution, then a white precipitate of silver chloride is obtained along with potassium nitrate solution. Gas C does not burn itself but helps burn other things.
(a) What is compound A?
(b) What is compound B?
(c) What is gas C?
(d) What do you think is the black substance X? What is its function?
(e) What is the general name of substances like X?


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


State an important use of decomposition reactions.


What type of chemical reaction is used to extract metals from their naturally occurring compounds like oxides or chlorides?


What type of reaction is represented by the following equation?

NH4 CI → NH3  +  HCI


What is the colour of ferrous sulphate crystals? How does this colour change after heating?


What is a decomposition reaction?


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.

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


Identify the type of following reaction :


Give a balanced equation for –

A double decomposition neutralization reaction involving an acid and a base


Complete the statement by filling in the blank with the correct word:

Decomposition of silver salts in the presence of sunlight is an example of _________.


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.


Chemical volcano is an example of ______ type of reaction.


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.


  1. Identify the gasses evolved at the anode and cathode in the above experimental set up.
  2. Name the process that occurs. Why is it called so?
  3. Illustrate the reaction of the process with the help of a chemical equation.

A metal nitrate 'A' on heating gives a metal oxide along with evolution of a brown coloured gas 'B' and a colourless gas, which helps in burning. Aqueous solution of 'A' when reacted with potassium iodide forms a yellow precipitate.

  1. Identify 'A' and 'B'
  2. Name the types of the reactions involved in the above statement.

Write the molecular formula of calcium carbonate.


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


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×