मराठी

State an Important Use of Decomposition Reactions. - Science

Advertisements
Advertisements

प्रश्न

State an important use of decomposition reactions.

Advertisements

उत्तर

An important use of decomposition reaction is digestion of food in our body. It is because the carbohydrates and proteins in the food we eat decompose to simpler sugars like glucose and amino acids, respectively. These further break down to provide us energy to do work.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Chemical Reactions and Equations - Exercise 2 [पृष्ठ ४५]

APPEARS IN

लखमीर सिंह Chemistry (Science) [English] Class 10
पाठ 1 Chemical Reactions and Equations
Exercise 2 | Q 7 | पृष्ठ ४५

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

Taking into consideration the relationship in the first pair, complete the second pair

2H2 + O2 → 2H2O :Combination Reaction :: 2HgO → 2Hg + O2:_________


Rewrite the following statements by selecting the correct options:
\[\ce{CaCO3 ->[\Delta] CaO + CO2 ^}\] is a __________ reaction.


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


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.

 


How can the rate of the chemical reaction, namely, decomposition of hydrogen peroxide be increased?


Give a balanced equation for –

A white precipitate obtained during a double decomposition reaction involving a silver salt with sodium salt.


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


What is electrolysis?


Which one of the following processes involves chemical reactions?


Which of the following is an endothermic process?


Balance the following chemical equation and identify the type of chemical reaction.

`"H"_2"O"_2("l") overset("U  V")(->) "H"_2"O"("l") + "O"_2("g")`


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.


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


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×