Question:
A mixture of two salts is used to prepare a solution S, which gives the following results:
\(\text{White precipitate(s) only} \underset{\text{Room temperature}}{\overset{\text{Dilute NaOH(aq)}}{\longleftarrow}} \text{S (aq solution of the salts)}\underset{\text{Room temperature}}{\overset{\text{Dilute HCl(aq)}}{\longrightarrow}} \text{White precipitate(s) only}\)
The correct option(s) for the salt mixture is(are)
A mixture of two salts is used to prepare a solution S, which gives the following results:
\(\text{White precipitate(s) only} \underset{\text{Room temperature}}{\overset{\text{Dilute NaOH(aq)}}{\longleftarrow}} \text{S (aq solution of the salts)}\underset{\text{Room temperature}}{\overset{\text{Dilute HCl(aq)}}{\longrightarrow}} \text{White precipitate(s) only}\)
The correct option(s) for the salt mixture is(are)
\(\text{White precipitate(s) only} \underset{\text{Room temperature}}{\overset{\text{Dilute NaOH(aq)}}{\longleftarrow}} \text{S (aq solution of the salts)}\underset{\text{Room temperature}}{\overset{\text{Dilute HCl(aq)}}{\longrightarrow}} \text{White precipitate(s) only}\)
The correct option(s) for the salt mixture is(are)
Updated On: May 23, 2024
Pb(NO3)2 and Zn(NO3)2
Pb(NO3)2 and Bi(NO3)2
AgNO3 and Bi(NO3)3
Pb(NO3)2 and Hg(NO3)2
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The Correct Option is A, B, C
Solution and Explanation
The accurate choice is C.
Silver nitrate Ag(NO3) and bismuth nitrate Bi(NO3)3) result in white precipitates.
Similarly, lead hydroxide Pb(OH)2), zinc hydroxide Zn(OH)2), and bismuth hydroxideBi(OH)3) form white precipitates.
However, mercury hydroxide Hg(OH)2) is unstable and does not yield a white precipitate.
Lead chloride PbCl2 is also noted as a white precipitate.
Therefore, options (A), (B), and (C) are deemed correct.
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