Ammonia Test

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Ammonia Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following could not be used to test the pressure of NH₃?

A
Characteristic sharp pungent odour of ammonia

B
High solubility of ammonia in water

C
Production of white fumes with HCl

D
Deep brown coloured precipitates with Nessler`s solution
Question 2
1 / -0

Why is funnel-shaped apparatus used for collection of aqueous ammonia?

A
Because it prevents dissolution of NH₃ in water

B
Because it helps in storage of NH₃ in water

C
Because it prevents back suction of water

D
Because it prevents absorption of gas
Question 3
1 / -0

Match the two compounds with their respective properties.

(i) Liquid ammonia (A) Weak electrolyte

(ii) Liquor ammonia fortis (B) Weak refrigerant

(C) Consists of only molecules

(D) More volatile

A
(i) – A and B, (ii) – C and D

B
(i) – A and C, (ii) – B and D

C
(i) – C and D, (ii) – A and B

D
(i) – B and C, (ii) A and D
Question 4
1 / -0

Which of the following does not require ammonia?

A
Cleaning tiles and windows

B
Transpiration of liquid hydrogen

C
Production of explosives

D
Removal of impurities from oil production
Question 5
1 / -0

A chemist tried to prepare NH₃ in a laboratory using Ca(OH)₂ and NH₄Cl. He could not prepare NH₃ as expected. Which of the following could be the reason behind this?

A
Keeping the apparatus in a tilted position

B
Taking Ca(OH)₂ and NH₄Cl in the ratio 2 : 3

C
Taking Ca(OH)₂ and NH₄Cl in finely grounded form

D
Using CaO as drying agent
Question 6
1 / -0

When mixture of ammonium gas and oxygen in the ratio 1 : 2 is passed over heated platinum, reddish brown vapours of a gas are observed. Which of the following is this gas?

A
NO

B
NO₂

C
CO₂

D
SO₂
Question 7
1 / -0

Which of the following drying agents is most suitable for drying of ammonia gas produced from ammonium chloride?

A
Concentrated sulphuric acid

B
Phosphorus pentaoxide

C
Anhydrous calcium chloride

D
Quicklime
Question 8
1 / -0

Which of the following statements is incorrect about catalytic oxidation of ammonia?

A
Reaction takes place in the presence of platinum at 800°C.

B
Percentage of ammonia in the gaseous mixture is 50%.

C
This is an exothermic reaction.

D
Vapours of nitrogen dioxide are obtained.
Question 9
1 / -0

Which of the following statements is incorrect about preparation of ammonia from ammonium salt?

A
Ratio of reactants is 2 : 3 by weight.

B
Ca(OH)₂ is used as it is cheap and is not deliquescent.

C
NH₄NO₃ can not be used as it is explosive in nature.

D
Apparatus is kept in horizontal position.

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Re-Attempt Weekly Quiz Competition

(i) Liquid ammonia	(A) Weak electrolyte
(ii) Liquor ammonia fortis	(B) Weak refrigerant
	(C) Consists of only molecules
	(D) More volatile

Ammonia Test - 3

Result

Ammonia Test - 3

Score

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Rank

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SHARING IS CARING

Question 1

Characteristic sharp pungent odour of ammonia

High solubility of ammonia in water

Production of white fumes with HCl

Deep brown coloured precipitates with Nessler`s solution

Question 2

Because it prevents dissolution of NH3 in water

Because it helps in storage of NH3 in water

Because it prevents back suction of water

Because it prevents absorption of gas

Question 3

(i) – A and B, (ii) – C and D

(i) – A and C, (ii) – B and D

(i) – C and D, (ii) – A and B

(i) – B and C, (ii) A and D

Question 4

Cleaning tiles and windows

Transpiration of liquid hydrogen

Production of explosives

Removal of impurities from oil production

Question 5

Keeping the apparatus in a tilted position

Taking Ca(OH)2 and NH4Cl in the ratio 2 : 3

Taking Ca(OH)2 and NH4Cl in finely grounded form

Using CaO as drying agent

Question 6

NO

NO2

CO2

SO2

Question 7

Concentrated sulphuric acid

Phosphorus pentaoxide

Anhydrous calcium chloride

Quicklime

Question 8

Reaction takes place in the presence of platinum at 800°C.

Percentage of ammonia in the gaseous mixture is 50%.

This is an exothermic reaction.

Vapours of nitrogen dioxide are obtained.

Question 9

Ratio of reactants is 2 : 3 by weight.

Ca(OH)2 is used as it is cheap and is not deliquescent.

NH4NO3 can not be used as it is explosive in nature.

Apparatus is kept in horizontal position.

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Because it prevents dissolution of NH₃ in water

Because it helps in storage of NH₃ in water

Taking Ca(OH)₂ and NH₄Cl in the ratio 2 : 3

Taking Ca(OH)₂ and NH₄Cl in finely grounded form

NO₂

CO₂

SO₂

Ca(OH)₂ is used as it is cheap and is not deliquescent.

NH₄NO₃ can not be used as it is explosive in nature.