Which of the following two aqueous solutions, when mixed, will not result in a precipitate? a. lead nitrate and sodium chloride b. All of the solutions will result in a precipitate. c. magnesium chloride and sodium hydroxide d. magnesium sulfate and calcium nitrate e. potassium carbonate and zinc sulfate f. None of these solutions will result in a precipitate.
a) lead nitrate and sodium chloride
Pb(NO3)2 + 2 NaCl ------------> PbCl2 (s) + 2NaNO3
a white precipitate of lead chloride is formed
c) MgCl2 +2 NaOH ------------> Mg(OH)2 (s) + 2NaCl
A white precipitate of magnesium hydroxide is formed
d) MgSO4 + Ca(NO3)2 ----------> CaSO4 (s) + Mg(NO3)2
a white precipitate of calcium sulphate is formed.
e) K2CO3 + ZnSO4 ------------> ZnCO3(s) + K2CO3
a white precipitate of zinc carbonate is formed.
Thus option b is correct
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