(A) In qualitative analysis,$Hg^{2+}$ and $Pb^{2+}$ both belong to Group $II$ and form black precipitates ($HgS$ and $PbS$ respectively) when $H_2S$ i

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(A) In qualitative analysis,$Hg^{2+}$ and $Pb^{2+}$ both belong to Group $II$ and form black precipitates ($HgS$ and $PbS$ respectively) when $H_2S$ is passed in the presence of dilute $HCl$. Therefore,they cannot be distinguished by this reagent alone.

Class 12 Chemistry Principles Related to Practical Chemistry Wet Test for Basic Radical

Difficult

Which of the following pairs cannot be distinguished by passing $H_2S$ gas?

A
$Hg^{2+}, Pb^{2+}$
B
$Cd^{2+}, Pb^{2+}$
C
$As^{3+}, Cu^{2+}$
D
$Zn^{2+}, Mn^{2+}$

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Principles Related to Practical Chemistry

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Wet Test for Basic Radical

The solution of $BiCl_{3}$ in dil. $HCl$ when diluted with water,forms a white precipitate which is:

DifficultMHT CET 2012

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Mark the compound which turns black with $NH_4OH$.

Medium

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Conc. $HNO_3$ is added before proceeding to test for group $III$ members. This is to

Difficult

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An aqueous solution contains the ions as $Hg_2^{2+}$,$Hg^{2+}$,$Pb^{2+}$,and $Cd^{2+}$. The addition of dilute $HCl$ $(6 \ N)$ precipitates:

DifficultIIT 1995

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Formation of which complex,among the following,is not a confirmatory test of $Pb^{2+}$ ions?

MediumJEE MAIN 2023

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Which of the following pairs cannot be distinguished by passing $H_2S$ gas?

Similar Questions

The solution of $BiCl_{3}$ in dil. $HCl$ when diluted with water,forms a white precipitate which is:

Mark the compound which turns black with $NH_4OH$.

Conc. $HNO_3$ is added before proceeding to test for group $III$ members. This is to

An aqueous solution contains the ions as $Hg_2^{2+}$,$Hg^{2+}$,$Pb^{2+}$,and $Cd^{2+}$. The addition of dilute $HCl$ $(6 \ N)$ precipitates:

Formation of which complex,among the following,is not a confirmatory test of $Pb^{2+}$ ions?

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