Analytical Test

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Analytical Test - 10

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Weekly Quiz Competition

Question 1
4 / -1

Which of the following cannot give iodometric titration?

A
Fe³⁺

B
Cu²⁺

C
Pb²⁺

D
Ag⁺
Question 2
4 / -1

The only cations present in a slightly acidic solution are Fe³⁺, Zn²⁺ and Cu²⁺. The reagent that when added in excess to this solution would identify and separate Fe³⁺ in one step is

A
2 M HCl

B
6 M NH₃

C
6 M NaOH

D
H₂S gas

Solution
Question 3
4 / -1

K₂[HgI₄] detects the ion/group

A
NH₂

B
NO

C

D
Cl^–

Solution
Question 4
4 / -1

Which of the following does not react with AgCl ?

A
Na₂CO

B
NaNO₃

C
NH₄OH

D
Na₂S₂O₃
Question 5
4 / -1

Which one of the following does not produce metallic sulphide with H₂S?

A
ZnCl₂

B
CdCl₂

C
COCl₂

D
CuCl₂
Question 6
4 / -1

Which of the following statement is correct ?

A
Fe²⁺ gives brown colour with ammonium thiocyanate

B
Fe²⁺ gives blue precipitate with potassium ferricyanide

C
Fe³⁺ gives brown colour with potassium ferricyanide

D
Fe³⁺ gives red colour with potassium ferrocyanide
Question 7
4 / -1

Which one of the following ionic species will impart colour to an aqueous solution ?

A
Ti⁴⁺

B
Cu⁺

C
Zn²⁺

D
Cr³⁺
Question 8
4 / -1

When a substance A reacts with water it produces a combustible gas B and a solution of substance C in water. When another substance D reacts with this solution of C, it also produces the same gas B on warming but D can produce gas B on reaction with dilute sulphuric acid at room temprerature. A imparts a deep golden yellow colour to a smokeless flame of Bunsen burner.A, B, C and D respectively are

A
Na ,H₂, NaOH, Zn

B
K, H₂, KOH, Al

C
Ca, H₂ , Ca (OH)₂, Sn

D
CaC₂, C₂H₂, Ca (OH)₂, Fe

Solution
Question 9
4 / -1

A one litre flask is full of brown bormine vapours. The intensity of brown colour of vapour will not decrease appreciably on adding to the flask some

A
Pieces of marble

B
Animal charcoal powder

C
Carbon tetrachloride

D
Carbon disulphide
Question 10
4 / -1

When I₂ is passed through KCl, KF, KBr

A
Cl₂ and Br₂ are evolved

B
Cl₂ is evolved

C
Cl₂, F₂ and Br₂ are evolved

D
None of these

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Analytical Test - 10

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Analytical Test - 10

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Question 1

Fe3+

Cu2+

Pb2+

Ag+

Question 2

2 M HCl

6 M NH3

6 M NaOH

H2S gas

Solution

Question 3

NH2

NO

Cl–

Solution

Question 4

Na2CO

NaNO3

NH4OH

Na2S2O3

Question 5

ZnCl2

CdCl2

COCl2

CuCl2

Question 6

Fe2+ gives brown colour with ammonium thiocyanate

Fe2+ gives blue precipitate with potassium ferricyanide

Fe3+ gives brown colour with potassium ferricyanide

Fe3+ gives red colour with potassium ferrocyanide

Question 7

Ti4+

Cu+

Zn2+

Cr3+

Question 8

Na ,H2, NaOH, Zn

K, H2, KOH, Al

Ca, H2 , Ca (OH)2, Sn

CaC2, C2H2, Ca (OH)2, Fe

Solution

Question 9

Pieces of marble

Animal charcoal powder

Carbon tetrachloride

Carbon disulphide

Question 10

Cl2 and Br2 are evolved

Cl2 is evolved

Cl2, F2 and Br2 are evolved

None of these

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Fe³⁺

Cu²⁺

Pb²⁺

Ag⁺

6 M NH₃

H₂S gas

NH₂

Cl^–

Na₂CO

NaNO₃

NH₄OH

Na₂S₂O₃

ZnCl₂

CdCl₂

COCl₂

CuCl₂

Fe²⁺ gives brown colour with ammonium thiocyanate

Fe²⁺ gives blue precipitate with potassium ferricyanide

Fe³⁺ gives brown colour with potassium ferricyanide

Fe³⁺ gives red colour with potassium ferrocyanide

Ti⁴⁺

Cu⁺

Zn²⁺

Cr³⁺

Na ,H₂, NaOH, Zn

K, H₂, KOH, Al

Ca, H₂ , Ca (OH)₂, Sn

CaC₂, C₂H₂, Ca (OH)₂, Fe

Cl₂ and Br₂ are evolved

Cl₂ is evolved

Cl₂, F₂ and Br₂ are evolved