मराठी

Write a balanced chemical equation of the following reaction and also classify them. Iron (III) oxide on heating with carbon monoxide gas reacts to form solid iron and liberates carbon dioxide gas.

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प्रश्न

Write a balanced chemical equation of the following reaction and also classify them.

 Iron (III) oxide on heating with carbon monoxide gas reacts to form solid iron and liberates carbon dioxide gas.

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उत्तर

`"Fe"_2"O"_3("s") + 3"CO"("g") -> 2"Fe"("s") + 3"CO"_2("g")` : Redox reaction

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पाठ 1: Chemical Reactions and Equations - Exemplar [पृष्ठ ७]

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एनसीईआरटी एक्झांप्लर Science Exemplar Class 10
पाठ 1 Chemical Reactions and Equations
Exemplar | Q 33. (c) | पृष्ठ ७

संबंधित प्रश्‍न

Write a balanced chemical equation with state symbols for the following reaction.

Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride.


What are the limitations of a chemical equation ?


State four conditions necessary for a chemical reaction to take place.


Balance the following equation. Also name the products formed.

`Na + H_2 O   → Na OH + H_2` 


Name the type of chemical reaction shown by the following equation:

Fe2O3 + 2Al → Al2O3 + 2Fe


Balance the following equation:

\[\ce{H2S + Cl2->S + HCl}\]


Underline the incorrectly balanced compound equation and rewrite the correct equation.

\[\ce{FeS + 2HCl + 2FeCl2 + H2S}\]


Underline the incorrectly balanced compound equation and rewrite the correct equation.

\[\ce{PbO2 + 4HCl->PbCl2 + H2O + Cl2}\]


Balance the following important equation:

CuSO4 + NaOH → Na2SO4 + Cu(OH)2  


Balance the following important equation:

Al2O3.2H2O + NaOH → NaAlO2 + H2O  


Balance the following important equation:

Pb(NO3)2 + HCl → PbCl2 + HNO3 


Balance the following important equation:

(NH4)2SO4 + NaOH → Na2SO4 + H2O + NH3


Balance the following important equation:

NH3 + CuO → Cu + H2O + N2 


Balance the following important equation:

Cu + H2SO4 (conc.) → CuSO4 + H2O + SO2  


Before burning in air, the magnesium ribbon is cleaned by rubbing with sand paper to:


In the double displacement reaction between aqueous potassium iodide .and aqueous lead nitrate, a yellow precipitate of lead iodide is formed. While performing the activity if lead nitrate is not available, which of the following can be used in place of lead nitrate?


Write the balanced chemical equations for the following reactions and identify the type of reaction in each case.

  1. Nitrogen gas is treated with hydrogen gas in the presence of a catalyst at 773 K to form ammonia gas.
  2. Potassium hydroxide solution is treated with acetic acid to form potassium acetate and water.
  3. Ethanol is warmed with ethanoic acid to form ethyl acetate in the presence of concentrated H2SO4.
  4. Ethene is burnt in the presence of oxygen to form carbon dioxide, water and release heat and light. 

Complete the missing component /variable given as x and y in the following reactions

`"Cu"("s") + 2"AgNO"_3("aq") -> "Cu"("NO"_3)_2("aq") + x("s")`


Which among the following change is exothermic or endothermic in nature?

Dilution of sulphuric acid


Mention any two information conveyed by a balanced chemical equation.


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