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प्रश्न
Which among the following change is exothermic or endothermic in nature?
Dilution of sulphuric acid
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उत्तर
Exothermic
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संबंधित प्रश्न
What are the limitations of a chemical equation ?
Balance the following equation. Also name the products formed.
`Mg + O_2 → MgO`
Balance the following equation. Also name the products formed.
`Zn+ HCI → ZnCI _2 + H_2`
Balance the following equation. Also name the products formed.
`FeCI_2 + CI_2 → Fe CI_3`
Chemical equations suffer from a number of limitations. State the main limitations of a chemical equation.
Balance the following equation:
\[\ce{Fe2O3 + H2->Fe + H2O}\]
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{4P + 4O2->2P2O5}\]
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{FeS + 2HCl + 2FeCl2 + H2S}\]
Balance the following important equation:
Pb(OH)2 + NaOH → Na2PbO2 + H2O
Balance the following important equation:
Al2O3.2H2O + NaOH → NaAlO2 + H2O
Balance the following important equation:
\[\ce{Al(OH)3 -> Al2O3 + H2O}\]
Balance the following important equation:
NH4OH + H2SO4 → (NH4)2SO4 + H2O
Balance the following important equation:
HNO3 → H2O + NO2 + O2
Which of the following is Not True with respect to the neutralisation reaction?
Complete the missing component /variable given as x and y in the following reactions
`"Zn"("s") + "H"_2"SO"_4("aq") -> "ZnSO"_4(x) + "H"_2("y")`
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.
Complete and balance the following equation:
\[\ce{CuSO4 + NH3OH ->}\]
Complete and balance the following equation:
\[\ce{Al2O3 + NaOH ->}\]
Complete and balance the following equation:
\[\ce{C2H4Br2 +alcoholic KOH ->[\Delta]}\]
