The salt used for performing 'bead' test in qualitative inorganic analysis is [UPSEAT 2001]

\[{{K}_{2}}S{{O}_{4}}.A{{l}_{2}}{{(S{{O}_{4}})}_{3}}.24{{H}_{2}}O\]

\[FeS{{O}_{4}}.{{(N{{H}_{4}})}_{2}}S{{O}_{4}}.6{{H}_{2}}O\]

\[Na(N{{H}_{4}})HP{{O}_{4}}.4{{H}_{2}}O\]

If \[NaOH\] is added to an aqueous solution of zinc ions, a white precipitate appears and on adding excess \[NaOH\], the precipitate dissolves. In this solution zinc exists in the [NCERT 1981; MP PET 1993]

Both in cationic and anionic parts

There is no zinc in the solution

Explore topic-wise MCQs in Chemistry.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.

1.	The salt used for performing 'bead' test in qualitative inorganic analysis is [UPSEAT 2001]
A.	\[{{K}_{2}}S{{O}_{4}}.A{{l}_{2}}{{(S{{O}_{4}})}_{3}}.24{{H}_{2}}O\]
B.	\[FeS{{O}_{4}}.{{(N{{H}_{4}})}_{2}}S{{O}_{4}}.6{{H}_{2}}O\]
C.	\[Na(N{{H}_{4}})HP{{O}_{4}}.4{{H}_{2}}O\]
D.	\[CaS{{O}_{4}}2{{H}_{2}}O\]
Answer» D. \[CaS{{O}_{4}}2{{H}_{2}}O\]

Discussion

2.	A salt on treatment with dil. \[HCl\] gives a pungent smelling gas and a yellow precipitate. The salt gives green flame when tested. The salt solution gives a yellow precipitate with potassium chromate. The salt is [MP PET 1996]
A.	\[NiS{{O}_{4}}\]
B.	\[Ba{{S}_{2}}{{O}_{3}}\]
C.	\[Pb{{S}_{2}}{{O}_{3}}\]
D.	\[CuS{{O}_{4}}\]
Answer» C. \[Pb{{S}_{2}}{{O}_{3}}\]

Discussion

3.	A white solid 'A' on heating gives off a gas which turns lime water milky. The residue is yellow when hot but turns white on cooling. This solid 'A' is [MP PMT 1999]
A.	Zinc sulphate
B.	Zinc carbonate
C.	Lead sulphate
D.	Lead carbonate
Answer» C. Lead sulphate

Discussion

4.	On performing a borax-bead test with a given inorganic mixture for qualitative analysis, the colour of the bead was found to be emerald green both in oxidising and reducing flame. It indicates the possibility of the presence of[MP PMT 2001]
A.	\[C{{o}^{+2}}\]
B.	\[N{{i}^{+2}}~~~~~~\]
C.	\[C{{r}^{+3}}\]
D.	\[C{{u}^{+2}}\]
Answer» D. \[C{{u}^{+2}}\]

Discussion

5.	If \[NaOH\] is added to an aqueous solution of zinc ions, a white precipitate appears and on adding excess \[NaOH\], the precipitate dissolves. In this solution zinc exists in the [NCERT 1981; MP PET 1993]
A.	Cationic part
B.	Anionic part
C.	Both in cationic and anionic parts
D.	There is no zinc in the solution
Answer» E.

Discussion

6.	To a solution of a substance, gradual addition of ammonium hydroxide results in a black precipitate which does not dissolve in excess of \[N{{H}_{4}}OH\]. However, when \[HCl\] is added to the original solution, a white precipitate is formed. The solution contained [BHU 1973]
A.	Lead salt
B.	Silver salt
C.	Mercurous salt
D.	Copper salt
Answer» D. Copper salt

Discussion

Explore topic-wise MCQs in Chemistry.

The salt used for performing 'bead' test in qualitative inorganic analysis is [UPSEAT 2001]

A salt on treatment with dil. \[HCl\] gives a pungent smelling gas and a yellow precipitate. The salt gives green flame when tested. The salt solution gives a yellow precipitate with potassium chromate. The salt is [MP PET 1996]

A white solid 'A' on heating gives off a gas which turns lime water milky. The residue is yellow when hot but turns white on cooling. This solid 'A' is [MP PMT 1999]

On performing a borax-bead test with a given inorganic mixture for qualitative analysis, the colour of the bead was found to be emerald green both in oxidising and reducing flame. It indicates the possibility of the presence of[MP PMT 2001]

If \[NaOH\] is added to an aqueous solution of zinc ions, a white precipitate appears and on adding excess \[NaOH\], the precipitate dissolves. In this solution zinc exists in the [NCERT 1981; MP PET 1993]

To a solution of a substance, gradual addition of ammonium hydroxide results in a black precipitate which does not dissolve in excess of \[N{{H}_{4}}OH\]. However, when \[HCl\] is added to the original solution, a white precipitate is formed. The solution contained [BHU 1973]