मराठी

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

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प्रश्न

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

अति संक्षिप्त उत्तर
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उत्तर

A decomposition reaction is represented by the digestion of food in our body.

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पाठ 1: Chemical Reactions and Equations - Exercise 2 [पृष्ठ ६०]

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लखमीर सिंह Chemistry Part 2 [English] Class 10
पाठ 1 Chemical Reactions and Equations
Exercise 2 | Q 1. | पृष्ठ ६०

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

Write the balanced chemical equation for the following and identify the type of reaction.

\[\ce{Zinc carbonate(s) -> Zinc oxide(s) + Carbon dioxide(g)}\]


What type of reaction is represented by the following equation?

\[\ce{NH4Cl -> NH3 + HCl}\]


What type of chemical reaction takes place when limestone is heated?


What type of chemical reaction takes place when silver bromide is exposed to sunlight?


What type of reaction is represented by the following equation?

\[\ce{NH4NO2 -> N2 + 2H2O}\]


Two metals X and Y form the salts XSO4 and Y2SO4, respectively. The solution of salt XSO4 is blue in colour whereas that of Y2SO4 is colourless. When barium chloride solution is added to XSO4 solution, then a white precipitate Z is formed along with a salt which turns the solution green. And when barium chloride solution is added to Y2SO4 solution, then the same white precipitate Z is formed along with colourless common salt solution.

  1. What could the metals X and Y be?
  2. Write the name and formula of salt XSO4.
  3. Write the name and formula of salt Y2SO4.
  4. What is the name and formula of white precipitate Z?
  5. Write the name and formula of the salt which turns the solution green in the first case.

How will you obtain  Nitrogen dioxide from lead nitrate.
Also give balanced equations for the reactions


Give a scientific reason.

When the gas formed on heating limestone is passed through freshly prepared lime water, the lime water turns milky.


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?


Answer the following question.
2 g of silver chloride is taken in a china dish and the china dish is placed in sunlight for some time. What will be your observation in this case? Write the chemical reaction involved in the form of a balanced chemical equation. Identify the type of chemical reaction.


Classify the following reaction into different type:

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


Differentiate between the following:

Electrolytic decomposition and photochemical decomposition.


Electrolysis is type of ______ reaction.


Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is:


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.


When lead nitrate is heated strongly in a boiling tube, two gases are liberated and a solid residue is left behind in the test tube.

  1. Name the type of chemical reaction and define it.
  2. Write the name and formula of the coloured gas liberated.
  3. Write the balanced chemical equation for the reaction.
  4. Name the residue left in the test tube and state the method of testing its nature (acidic/basic).

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


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