What is the difference between displacement and double displacement reactions ? Write equations for these reactions.
What is the difference between displacement and double displacement reactions ? Write equations for these reactions.
In a displacement reaction, a more reactive element replaces a less reactive element from a compound.
$A + BX \longrightarrow AX + B$; where $A$ is more reactive than $B$
In a double displacement reaction, two atoms or a group of atoms switch places to form new compounds.
$AB + CD \longrightarrow AD + CB$
For example :
Displacement reaction :
$CuS{O_{4(aq)}}\, + \,Z{n_{(s)}}\, \to \,ZnS{O_{4(aq)}}\, + \,C{u_{(s)}}\,$
Double displacement reaction :
$N{a_2}S{O_{4(aq)}}\, + \,BaC{l_2}_{(aq)}\, \to \,BaS{O_{4(s)}}\, + \,2NaC{l_{(aq)}}\,$
Similar Questions
Translate the following statements into chemical equations and then balance them.
$(a)$ Hydrogen gas combines with nitrogen to form ammonia.
$(b)$ Hydrogen sulphide gas burns in air to give water and sulpur dioxide.
$(c)$ Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
$(d)$ Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.
Translate the following statements into chemical equations and then balance them.
$(a)$ Hydrogen gas combines with nitrogen to form ammonia.
$(b)$ Hydrogen sulphide gas burns in air to give water and sulpur dioxide.
$(c)$ Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
$(d)$ Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.
Explain the "Oxidation'' in terms of gain or loss of oxygen with two examples.
Explain the "Oxidation'' in terms of gain or loss of oxygen with two examples.
Why should a magnesium ribbon be cleaned before burning in air ?
Why should a magnesium ribbon be cleaned before burning in air ?
Write the balanced equation for the following chemical reactions.
$(i)$ Hydrogen $+$ Chlorine $\to $ Hydrogen chloride
$(ii)$ Barium chloride $+$ Aluminium sulphate $\to $ Barium sulphate $+$ Aluminium chloride
$(iii)$ Sodium $+$ Water $\to $ Sodium hydroxide $+$ Hydrogen
Write the balanced equation for the following chemical reactions.
$(i)$ Hydrogen $+$ Chlorine $\to $ Hydrogen chloride
$(ii)$ Barium chloride $+$ Aluminium sulphate $\to $ Barium sulphate $+$ Aluminium chloride
$(iii)$ Sodium $+$ Water $\to $ Sodium hydroxide $+$ Hydrogen
What is a balanced chemical equation ? Why should chemical equations be balanced ?
What is a balanced chemical equation ? Why should chemical equations be balanced ?