Analytical Test

Result

Analytical Test - 9

Score
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Rank
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Weekly Quiz Competition

Question 1
4 / -1

The ion which is not precipitated by H₂S in the presence of HCl is

A
Cu⁺

B
Ag⁺

C
Pb²⁺

D
Al³⁺
Question 2
4 / -1

The salt used for performing ‘bead’ test in qualitative inorganic analysis is

A

B

C

D
Question 3
4 / -1

In which of the following solvents, AgBr will have the highest solubility ?

A
10^-3 M NaBr

B
10^-3 M NH₄OH

C
Pure water

D
10^-3 M HBr
Question 4
4 / -1

Cu²⁺ ions will be reduced to Cu⁺ ions by the addition of a an aqueous solution of

A
KF

B
KCl

C
KI

D
KOH

Solution
Question 5
4 / -1

A substance on treatment with dil.H₂SO₄ liberates a colourless gas which produces (i) turbidity with baryta water and (ii) turns acidified dichromate solution green. The reaction indicates the presence of

A

B

C

D

Solution
Question 6
4 / -1

Brown ring test is used to detect

A
Iodide

B
Nitrate

C
Iron

D
Bromide

Solution
Question 7
4 / -1

Which compound does not dissolve in hot dilute HNO₃?

A
HgS

B
PbS

C
CuS

D
CdS
Question 8
4 / -1

An aqueous solution of FeSO₄Al₂(SO₄)₃ and chrome alum is heated with excess of Na₂O₂ and filtered. The materials obtained are

A
A colourless filtrate and a green residue

B
A yellow filtrate and a green residue

C
A yellow filtrate and a brown residue

D
A green filtrate and a brown residue

Solution
Question 9
4 / -1

Which of the following compounds on reaction with NaOH and Na₂ O₂ gives yellow colour ?

A
Cr(OH)₃

B
Zn (OH)₂

C
Al (OH)₃

D
None of these

Solution
Question 10
4 / -1

CrO₃ dissolve in aqueous NaOH to give

A

B

C

D

Solution