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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
Write balanced chemical equations for the following word equation:
Magnesium + dil sulphuric acid → Magnesium sulphate + water
Write balanced chemical equations for the following word equation:
Magnesium + oxygen → Magnesium oxide
Write balanced chemical equations for the reactions represented by word equations in the conditions for a chemical reaction.
Balance the following equation:
`Fe+ H_2O → Fe_3 O_4+H_2`
Balance the following equation. Also name the products formed.
`Zn+ HCI → ZnCI _2 + H_2`
Name the type of chemical reaction shown by the following equation.
NaOH + HCI → NaCI + H2O
Write a balanced molecular equation for the following word equation:
\[\ce{Lead nitrate + sodium chloride->Sodium nitrate + lead chloride}\]
Balance the following equation:
\[\ce{Al + O2->Al2O3}\]
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{FeS + 2HCl + 2FeCl2 + H2S}\]
Balance the following important equation:
Pb(NO3)2 + NaCl → NaNO3 + PbCl2
Balance the following important equation:
FeCl3 + NaOH → NaCl + Fe(OH)3
Balance the following important equation:
CuSO4 + NaOH → Na2SO4 + Cu(OH)2
Balance the following important equation:
KMnO4 + HCl → KCl + MnCl2 + H2O + Cl2
Balance the following important equation:
HNO3 → H2O + NO2 + O2
Balance the following important equation:
C + H2SO4 (conc.) → CO2 + H2O + SO2
Balance the following important equation:
Cu + H2SO4 (conc.) → CuSO4 + H2O + SO2
Which of the following is true for an unbalanced chemical equation?
Write the balanced chemical equations for the following reactions and identify the type of reaction in each case.
- Iron (III) oxide reacts with aluminum and gives molten iron and aluminum oxide.
- Magnesium ribbon is burnt in an atmosphere of nitrogen gas to form solid magnesium nitride.
- Chlorine gas is passed in an aqueous potassium iodide solution to form potassium chloride solution and solid iodine.
- Ethanol is burnt in air to form carbon dioxide, water and releases heat.
Which among the following change is exothermic or endothermic in nature?
Dissolution of ammonium chloride in water
Write the balanced equation for the following chemical reaction.
\[\ce{Barium chloride + Aluminium sulphate -> Barium sulphate + Aluminium chloride}\]
