Advertisements
Advertisements
प्रश्न
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"`
पर्याय
(i) and (iii)
(iii) and (iv)
(ii) and (iv)
(ii) and (iii)
उत्तर
(ii) and (iii)
Explanation -
Both the reactions (ii) and (iii) are the examples of combination reactions.
APPEARS IN
संबंधित प्रश्न
What are the limitations of a chemical equation ?
Differentiate between:
Reactants and products.
Balance the following equation:
\[\ce{Fe2O3 + H2->Fe + H2O}\]
Balance the following equation:
\[\ce{ZnS + O2->ZnO + SO2}\]
Balance the following equation:
\[\ce{H2S + Cl2->S + HCl}\]
Balance the following important equation:
MnO2 + HCl → MnCl2 + H2O + Cl2
Balance the following important equation:
NH4OH + H2SO4 → (NH4)2SO4 + H2O
Which among the following change is exothermic or endothermic in nature?
Decomposition of ferrous sulphate
Which among the following change is exothermic or endothermic in nature?
Dissolution of ammonium chloride in water
Complete the co-relation:
CuI2 : Brown : : AgCl : ______
