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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’.
- Write the chemical formulae of X and Y.
- Write a balanced chemical equations when X and Y are dissolved in water.
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उत्तर
- The Compound ‘X’ is magnesium oxide (MgO). The compound ‘Y’ is magnesium nitride (Mg3N2)
- `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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संबंधित प्रश्न
Differentiate between:
A balanced and an unbalanced chemical equation.
Write balanced chemical equations for the following word equation:
Calcium oxide + water → Calcium hydroxide
Balance the following equation:
\[\ce{Al + H2O->Al2O3 + H2}\]
Balance the following equation:
\[\ce{C + H2SO4->CO2 + H2O + SO2}\]
Balance the following equation:
\[\ce{KHCO3->K2CO3 + H2O + CO2}\]
Balance the following important equation:
\[\ce{Al(OH)3 -> Al2O3 + H2O}\]
Balance the following important equation:
Fe2O3 + Al → Al2O3 + Fe
Balance the following important equation:
Mg3N2 + H2O → Mg(OH)2 + NH3
Balance the following important equation:
C + HNO3 (conc.) → CO2 + H2O + NO2
Balance the following important equation:
C + H2SO4 (conc.) → CO2 + H2O + SO2
Which of the following is Not True with respect to the neutralisation reaction?
In a chemical reaction between sulphuric acid and barium chloride solution the white precipitates formed are of:
A chemical reaction does not involve:
When ferrous sulphate is heated strongly it undergoes decomposition to form ferric oxide as a main product accompanied by a change in colour from:
Name the products formed when iron filings are heated with dilute hydrochloric acid.
Which among the following change is exothermic or endothermic in nature?
Dissolution of sodium hydroxide in water
What happens when a piece of
- zinc metal is added to copper sulphate solution?
- aluminium metal is added to dilute hydrochloric acid?
- silver metal is added to copper sulphate solution?
Also write the balanced chemical equation if the reaction occurs.
The equation Na + H2O → NaOH + H2 is ______.
Balance the following equation.
\[\ce{Calcium chloride + Sulphuric acid -> Calcium sulphate + Hydrogen chloride}\]
Complete and balance the following equation:
\[\ce{Al2O3 + NaOH ->}\]
