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A magnesium ribbon is burnt in oxygen to give a white compound ‘X’ accompanied by emission of light. If the burning ribbon is now placed in an atmosphere of nitrogen - Science

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प्रश्न

A magnesium ribbon is burnt in oxygen to give a white compound ‘X’ accompanied by emission of light. If the burning ribbon is now placed in an atmosphere of nitrogen, it continues to burn and forms a compound ‘Y’.

  1. Write the chemical formulae of X and Y.
  2. Write a balanced chemical equations when X and Y are dissolved in water.
संक्षेप में उत्तर

उत्तर

  1. The Compound ‘X’ is magnesium oxide (MgO). The compound ‘Y’ is magnesium nitride (Mg3N2)
  2. `underset((X))("MgO"("s")) + "H"_2"O"("l") -> "Mg"("OH")_2("s")`
    `underset(("Y"))("Mg"_3"N"_2("s")) + 6"H"_2"O"("l") -> 3"Mg"("OH")_2("s") + 2"NH"_3("g")`
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अध्याय 1: Chemical Reactions and Equations - Exemplar [पृष्ठ ७]

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एनसीईआरटी एक्झांप्लर Science [English] Class 10
अध्याय 1 Chemical Reactions and Equations
Exemplar | Q 36. | पृष्ठ ७

संबंधित प्रश्न

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


Balance the following equation. Also name the products formed. 

`Mg + O_2         → MgO`


Balance the following equation:

\[\ce{Fe + H2O⇌Fe3O4 + H2}\]


Balance the following equation:

\[\ce{FeCl3 + NaOH->NaCl + Fe(OH)3}\]


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

\[\ce{2Na + 3H2O->2NaOH + H2}\]


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

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


Balance the following important equation:

Na2CO3 + HCl → NaCl + H2O + CO2 


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. 

A solution of potassium chloride when mixed with silver nitrate solution, an insoluble substance is formed. Write the chemical reaction involved and mention the type of the chemical reaction.


Write the balanced equation for the following chemical reaction.

\[\ce{Barium chloride + Aluminium sulphate -> Barium sulphate + Aluminium chloride}\]


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