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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
Balance the following equation:
`Pb_3 O_4 → PbO+O_2`
Balance the following equation. Also name the products formed.
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Write the balanced equation for the following chemical reaction.
\[\ce{Sodium + Water -> Sodium hydroxide + Hydrogen}\]
Write balanced chemical equation for the following word equation:
Magnesium + dil. sulphuric acid → Magnesium sulphate + hydrogen
Write a balanced molecular equation for the following word equation:
\[\ce{Calcium + oxygen->Calcium oxide}\]
Which among the following change is exothermic or endothermic in nature?
Dilution of sulphuric acid
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.
Identify the types of reaction mentioned above. Give one example for type in the form of a balanced chemical equation.
Complete the co-relation:
CuI2 : Brown : : AgCl : ______
Complete and balance the following equation:
\[\ce{C2H4Br2 + alcoholic KOH ->[\Delta]}\]
