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प्रश्न
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.
उत्तर
- Metal zinc displaces hydrogen component on reacting with dilute sulphuric acid (H2SO4) as H2 gas which is evolved
`"Zn"("s") + "H"_2"SO"_2("aq") -> "ZnSO"_4("aq") + "H"_2("g")` - Ammonia and hydrogen chloride gas. When vapours of ammonia and hydrogen chloride gas are mixed, the compound formed is ammonium chloride. It is a white solid.
`"NH"_3("g") + "HCl"("g") -> "NH"_4"Cl"("s")` - Copper displaces silver from the aqueous solution of silver nitrate.
`"Cu"("s") + 2"AgNO"_3("aq") -> "Cu"("NO"_3)_2("aq") + 2"Ag"("s")`
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संबंधित प्रश्न
Write balanced chemical equations for the following word equation:
Magnesium + oxygen → Magnesium oxide
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.
`K_2 O + H_2 O → KOH`
Write your observations and name the product when
Zinc reacts with dilute hydrochloric acid.
Balance the following equation:
\[\ce{CaO + HCl->CaCl2 + H2O}\]
Balance the following important equation:
NaOH + H2SO4 → Na2SO4 + H2O
Balance the following important equation:
NaAlO2 + H2O → NaOH + Al(OH)3
Balance the following important equation:
ZnS + O2 → ZnO + SO2
Which of the following correctly represents a balanced chemical equation?
