Advertisements
Advertisements
प्रश्न
What are the limitations of a chemical equation ?
Advertisements
उत्तर
- It does not inform about the physical states of the reactants and the product i.e. whether they are solids, liquids and gases.
- It does not inform about the concentration of reactants and products.
- It does not inform about the time taken for the completion of the reaction.
- It does not inform about the rate at which a reaction proceeds.
- It does not inform about the heat changes during the reaction i. e. whether the heat is given out or absorbed.
- It does not inform about the conditions such as temperature, pressure, catalyst etc. which affect the reaction.
- It does not inform about the nature of the reaction i.e. whether it is reversible or irreversible.
APPEARS IN
संबंधित प्रश्न
Balance the following equation. Also name the products formed.
`PbCO _3 → PbO +CO_2`
Balance the following equation:
\[\ce{CuO + NH3->Cu + H2O + N2}\]
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{PbO2 + 4HCl->PbCl2 + H2O + Cl2}\]
Balance the following important equation:
NaOH + H2SO4 → Na2SO4 + H2O
Balance the following important equation:
Fe + HCl → FeCl2 + H2
Balance the following important equation:
\[\ce{NH4Cl + Ca(OH)2 → CaCl2 + H2O + NH3}\]
Balance the following important equation:
C + HNO3 (conc.) → CO2 + H2O + NO2
Complete the missing component /variable given as x and y in the following reactions :
`"Pb"("NO"_3)_2("aq") + 2"Kl"("aq") -> "Pbl"_2(x) + 2"KNO"_3("y")`
Complete the missing component/variable given as x and y in the following reactions
`"CaCO"_2(s)overset(x)(->) "CaO"("s") + "CO"_2("g")`
Write the balanced chemical equation for the following reaction
Sodium carbonate on reaction with hydrochloric acid in equal molar concentrations gives sodium chloride and sodium hydrogencarbonate.
