मराठी

The following reaction is used for the preparation of oxygen gas in the laboratory KClOsHeatCatalystKClsOg2KClO3(s)→CatalystHeat2KCl(s)+3O2(g)

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प्रश्न

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

`2"KClO"_3("s") overset("Heat")underset("Catalyst")(->) 2"KCl"("s") + 3"O"_2 ("g")`

Which of the following statement(s) is(are) correct about the reaction ?

पर्याय

  • It is a decomposition reaction and is endothermic in nature

  •  It is a combination reaction

  • It is a decomposition reaction and is accompanied by release of heat

  • It is a photochemical decomposition reaction and exothermic in nature

MCQ
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उत्तर

It is a decomposition reaction and is endothermic in nature

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Chemical Reactions and Equations - Exemplar [पृष्ठ ४]

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एनसीईआरटी एक्झांप्लर Science Exemplar Class 10
पाठ 1 Chemical Reactions and Equations
Exemplar | Q 15 | पृष्ठ ४

संबंधित प्रश्‍न

Write the balanced equation for the following chemical reaction.

\[\ce{Hydrogen + Chlorine -> Hydrogen chloride}\]


Balance the following equation:

CO + O2 → CO2


Write balanced chemical equations for the reactions represented by word equations in the conditions for a chemical reaction.


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\[\ce{C + H2SO4->CO2 + H2O + SO2}\]


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\[\ce{AgCl + NH4OH -> Ag(NH3)2Cl + H2O}\]


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Balance the following important equation:

KMnO4 + HCl → KCl + MnCl2 + H2O + Cl2 


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NH3 + O2 → NO + H2O (catalytic oxidation of  NH3) 


Which one of the following processes involve chemical reactions?


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

  1. Iron (III) oxide reacts with aluminum and gives molten iron and aluminum oxide.
  2. Magnesium ribbon is burnt in an atmosphere of nitrogen gas to form solid magnesium nitride.
  3. Chlorine gas is passed in an aqueous potassium iodide solution to form potassium chloride solution and solid iodine.
  4. Ethanol is burnt in air to form carbon dioxide, water and releases heat. 

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

A piece of sodium metal is added to absolute ethanol to form sodium ethoxide and hydrogen gas.


Which of the following statement is incorrect with reference to the reaction of silver nitrate with sodium chloride?


Identify the types of reaction mentioned above. Give one example for type in the form of a balanced chemical equation.


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