Answer
Verified
37.2k+ views
Hint: A balanced net ionic equation is the chemical equation that shows only those ions that are directly involved in the chemical reaction. The number of atoms and its type should be the same on both sides of the ionic reaction. That means the equation is balanced by both mass and charge.
Complete step-by-step solution:
As mentioned in the question, aqueous solution of magnesium chloride and silver nitrate when mixed results in the formation of solid silver chloride and aqueous magnesium nitrate.
We can express this reaction in terms of molecular equations. It is a balanced chemical equation having molecules rather than ions with subscripts indicating nature of the compound.
This gives us the balanced molecular equation-
\[MgC{l_2}(aq) + 2AgN{O_3}(aq) \to 2AgCl(s) \downarrow + Mg{(N{O_3})_2}(aq)\]
Since the molecules are made of electrolytes that can split into ions, they can be written in the form of a complete ionic equation. This type of equation has all the reactants and products in ionic form with subscripts describing state of matter. So, this equation can be written in ionic form as –
\[M{g^{2 + }}(aq) + 2C{l^ - }(aq) + 2A{g^ + }(aq) + 2N{O_3}^ - (aq) \to 2AgCl(s) \downarrow + M{g^{2 + }}(aq) + 2N{O_3}^ - (aq)\]
From this chemical equation, we get the net balanced ionic equation. This equation includes spectator ions as well as ions directly involved in the reaction. Spectator ions are those ions that do not take part in the chemical reaction and are found as it is in the solution, before and after the reaction.
Looking at the above reaction, we see that the magnesium and nitrate ions are both spectator ions and therefore they cancel out while writing the net balanced ionic equation.
So, we get-
\[C{l^ - }(aq) + A{g^ + }(aq) \to AgCl(s) \downarrow \]
As per this equation, we get the following terms: \[C{l^ - }(aq)\], \[A{g^ + }(aq)\]and \[AgCl(s)\].
Hence, the correct option is (A).
Note: Molecular balanced equations do not involve electrolytes always i.e. soluble ionic species. For example, in the above written ionic equation, AgCl remained as it is because it is insoluble in water and so cannot dissociate into ions, \[A{g^ + }\]and \[C{l^ - }\].
Complete step-by-step solution:
As mentioned in the question, aqueous solution of magnesium chloride and silver nitrate when mixed results in the formation of solid silver chloride and aqueous magnesium nitrate.
We can express this reaction in terms of molecular equations. It is a balanced chemical equation having molecules rather than ions with subscripts indicating nature of the compound.
This gives us the balanced molecular equation-
\[MgC{l_2}(aq) + 2AgN{O_3}(aq) \to 2AgCl(s) \downarrow + Mg{(N{O_3})_2}(aq)\]
Since the molecules are made of electrolytes that can split into ions, they can be written in the form of a complete ionic equation. This type of equation has all the reactants and products in ionic form with subscripts describing state of matter. So, this equation can be written in ionic form as –
\[M{g^{2 + }}(aq) + 2C{l^ - }(aq) + 2A{g^ + }(aq) + 2N{O_3}^ - (aq) \to 2AgCl(s) \downarrow + M{g^{2 + }}(aq) + 2N{O_3}^ - (aq)\]
From this chemical equation, we get the net balanced ionic equation. This equation includes spectator ions as well as ions directly involved in the reaction. Spectator ions are those ions that do not take part in the chemical reaction and are found as it is in the solution, before and after the reaction.
Looking at the above reaction, we see that the magnesium and nitrate ions are both spectator ions and therefore they cancel out while writing the net balanced ionic equation.
So, we get-
\[C{l^ - }(aq) + A{g^ + }(aq) \to AgCl(s) \downarrow \]
As per this equation, we get the following terms: \[C{l^ - }(aq)\], \[A{g^ + }(aq)\]and \[AgCl(s)\].
Hence, the correct option is (A).
Note: Molecular balanced equations do not involve electrolytes always i.e. soluble ionic species. For example, in the above written ionic equation, AgCl remained as it is because it is insoluble in water and so cannot dissociate into ions, \[A{g^ + }\]and \[C{l^ - }\].
Recently Updated Pages
To get a maximum current in an external resistance class 1 physics JEE_Main
If a wire of resistance R is stretched to double of class 12 physics JEE_Main
Let f be a twice differentiable such that fleft x rightfleft class 11 maths JEE_Main
Find the points of intersection of the tangents at class 11 maths JEE_Main
For the two circles x2+y216 and x2+y22y0 there isare class 11 maths JEE_Main
The path difference between two waves for constructive class 11 physics JEE_MAIN
Other Pages
Differentiate between homogeneous and heterogeneous class 12 chemistry JEE_Main
The mole fraction of the solute in a 1 molal aqueous class 11 chemistry JEE_Main
In the given circuit the current through the 5mH inductor class 12 physics JEE_Main
Explain the construction and working of a GeigerMuller class 12 physics JEE_Main
In a family each daughter has the same number of brothers class 10 maths JEE_Main
Identify which of the above shown graphs represent class 12 physics JEE_Main