Ammonia Test

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Ammonia Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following is true for ammonia?

A
It turns colour of moist litmus from blue to red.

B
It reacts with acids to form ammonium salts.

C
It decolourise the colour of phenolphthalein.

D
It has tendency to form anions.
Question 2
1 / -0

An industrial unit was established for manufacturing ammonia. They followed their own standard principles but failed to produce desirable amount of ammonia. Which of the following principles could be the reason for it?

A
They obtained nitrogen gas by fractional distillation of liquid air to produce ammonia.

B
They obtained hydrogen gas from water gas for manufacturing ammonia.

C
They used nitrogen and hydrogen in the ratio 1 : 3 by volumes.

D
They camed out the process at 450^oC - 500°C and 50 - 150 atm.
Question 3
1 / -0

While preparing NH₃ in laboratory, which of the following drying agents is preferred?

A
H₂SO₄

B
P₂O₅

C
NH₃

D
CaO
Question 4
1 / -0

Why is NH₄NO₃ not used for preparation of NH₃?

A
Because it is very less reactive.

B
Because it is explosive in nature.

C
Because it is very rare compound.

D
Because it undergoes sublimation.
Question 5
1 / -0

During preparation of aqueous ammonia, a chemist used a narrow ended delivery tube. Which of the following problems could be encountered?

A
Dissolution of NH₃ into water

B
Water from delivery tank could rush into delivery tube

C
Vaporisation of ammonia

D
Rapid absorption of NH₃
Question 6
1 / -0

A catalyst (finely divided iron) was used to improved the speed of reaction in Haber`s process. But the rate of reaction was not used even after using catalyst. What could be the reason behind this?

A
Due to reaction of N₂ and H₂ with the catalyst

B
Due to presence of impurities in N₂ and H₂

C
Due to high temperature (400 - 450°C) kept for the reaction

D
Due to exothermic nature of the reaction
Question 7
1 / -0

Ammonia behaves as a very weak base in its aqueous solution because

A
it easily forms a cation in aqueous solution

B
of lone pair of electrons on nitrogen atom

C
of high electronegativity of nitrogen

D
of non-polar nature of ammonia molecule
Question 8
1 / -0

Which of the following reagents will be required for the formation of urea?

(i) NH₃

(ii) CO₂

(iii) CO

(iv) NH₄OH

A
(i) and (ii)

B
(i) and (iii)

C
(ii) and (iv)

D
(iii) and (iv)
Question 9
1 / -0

Which common raw material will be required to manufacture fertilisers, explosives and plastics?

A
CH₄

B
NH₃

C
HNO₃

D
SO₂
Question 10
1 / -0

Why is apparatus kept in inclined position during preparation of Ammonia?

A
To allow collection of NH₃ by downward displacement of air

B
To prevent reaction between products and reactants

C
To prevent water vapour from tickling back and cracking the apparatus

D
To maintain proper population between reactants

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Ammonia Test - 2

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Ammonia Test - 2

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Question 1

It turns colour of moist litmus from blue to red.

It reacts with acids to form ammonium salts.

It decolourise the colour of phenolphthalein.

It has tendency to form anions.

Question 2

They obtained nitrogen gas by fractional distillation of liquid air to produce ammonia.

They obtained hydrogen gas from water gas for manufacturing ammonia.

They used nitrogen and hydrogen in the ratio 1 : 3 by volumes.

They camed out the process at 450o C - 500°C and 50 - 150 atm.

Question 3

H2SO4

P2O5

NH3

CaO

Question 4

Because it is very less reactive.

Because it is explosive in nature.

Because it is very rare compound.

Because it undergoes sublimation.

Question 5

Dissolution of NH3 into water

Water from delivery tank could rush into delivery tube

Vaporisation of ammonia

Rapid absorption of NH3

Question 6

Due to reaction of N2 and H2 with the catalyst

Due to presence of impurities in N2 and H2

Due to high temperature (400 - 450°C) kept for the reaction

Due to exothermic nature of the reaction

Question 7

it easily forms a cation in aqueous solution

of lone pair of electrons on nitrogen atom

of high electronegativity of nitrogen

of non-polar nature of ammonia molecule

Question 8

(i) and (ii)

(i) and (iii)

(ii) and (iv)

(iii) and (iv)

Question 9

CH4

NH3

HNO3

SO2

Question 10

To allow collection of NH3 by downward displacement of air

To prevent reaction between products and reactants

To prevent water vapour from tickling back and cracking the apparatus

To maintain proper population between reactants

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They camed out the process at 450^oC - 500°C and 50 - 150 atm.

H₂SO₄

P₂O₅

NH₃

Dissolution of NH₃ into water

Rapid absorption of NH₃

Due to reaction of N₂ and H₂ with the catalyst

Due to presence of impurities in N₂ and H₂

CH₄

NH₃

HNO₃

SO₂

To allow collection of NH₃ by downward displacement of air