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प्रश्न
Differentiate between a ‘word equation’ and a ‘molecular equation’ with a suitable example.
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उत्तर
Word equation tells which substances react (take part) in the chemical reaction and which substances are produced whereas molecular equation symbols and molecular formulas are used for both reactants and products.
Example: When zinc reacts with dilute sulphuric acid, both being reactants, products produced are zinc sulphate and hydrogen gas, which are shown as below:
Word equation:
\[\ce{Zinc + Sulphuric acid->Zinc sulphate + hydrogen}\]
Molecular equation:
\[\ce{\underset{\text{Zinc}}{Zn}+\underset{\text{[Sulphuric acid]}}{H2SO4(dil)}->\underset{\text{[Zinc sulphate]}}{ZnSo4}+\underset{\text{[Hydrogen]}}{H2[g]}}\]
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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.
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.
`NaNO_3→ NaNO_2 + O_2 ` Name of product (s)
Balance the following equation. Also name the products formed.
`FeCI_2 + CI_2 → Fe CI_3`
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{Fe2O3 + 2H2->2Fe + 3H2O}\]
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{3NH3 + H2SO4->(NH4)2SO4}\]
Balance the following important equation:
HNO3 → H2O + NO2 + O2
Which of the following correctly represents a balanced chemical equation?
Which of the following are combination reactions?
- `2"KClO"_3 overset("Heat")(->) 2"KCl" + 3"O"_2`
- `"MgO" + "H"_2"O" -> "Mg"("OH")_2`
- `4"Al" + 3"O"_2 -> 2"Al"_2"O"_3`
- `"Zn" + "FeSO"_4 -> "ZnSO"_4 + "Fe"`
Write the balanced equation for the following chemical reaction.
\[\ce{Barium chloride + Aluminium sulphate -> Barium sulphate + Aluminium chloride}\]
