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प्रश्न
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.
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उत्तर
| (a) | `"Fe"_2"O"_3("s") + 2"Al"("s") ->"Al"_2` | Displacement reaction / Redox reaction |
| (b) | `3"Mg"("s") + "N"_2("g") -> "Mg"_3"N"_2 ("s")` | Combination reaction |
| (c) | `2"KI"("aq") + "Cl"_2("g") + "Cl"_2("g") -> 2"KCl"("aq") + "I"_2("s");` | Displacement reaction |
| (d) | `"C"_2"H"_5"OH"("l") + 3"O"_2("g") -> 2"CO"_2("g") + 3"H"_2"O"("l") + "Heat"; ` | Redox reaction/ Combustion reaction |
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संबंधित प्रश्न
Write a balanced chemical equation with state symbols for the following reaction.
Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride.
Balance the following equation:
H2 + O2 → H2O
What information do you get from the following chemical equation:
Zn(s) + 2HCl (dil) → ZnCl2 (aq) + H2(g)
Balance the following equation. Also name the products formed.
`NaNO_3→ NaNO_2 + O_2 ` Name of product (s)
Balance the following equation. Also name the products formed.
Ag +S → `Ag_2 S`
Balance the following equation. Also name the products formed.
`Mg + O_2 → MgO`
What is the chemical equation. How is it represented?
State what is a balanced equation with a relevant example. Give a reason why an equation is balanced with reference to the law of conservation of matter.
Balance the following equation:
\[\ce{Fe2O3 + H2->Fe + H2O}\]
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{FeS + 2HCl + 2FeCl2 + H2S}\]
Balance the following important equation:
FeCl3 + NaOH → NaCl + Fe(OH)3
Balance the following important equation:
FeCl3 + NH4OH → NH4Cl + Fe(OH)3
Balance the following important equation:
Al + Cl2 → AlCl3
Balance the following important equation:
\[\ce{NH4Cl + Ca(OH)2 → CaCl2 + H2O + NH3}\]
Balance the following important equation:
NH4OH + H2SO4 → (NH4)2SO4 + H2O
Balance the following important equation:
S + H2SO4 (conc.) → SO2 + H2O
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"`
Write a balanced chemical equation of the following reaction and also classify them.
Hydrogen sulphide gas reacts with oxygen gas to form solid sulphur and liquid water.
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:
\[\ce{Al2O3 + NaOH ->}\]
