Inorganic Chemistry Test

Result

Inorganic Chemistry Test - 9

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Which among the following pairs of gases is produced due to bacterial decomposition of urea?

A
NH₃ and CO₂

B
CO₂ and H₂

C
NH₃ and CO

D
NH₃ and H₂

Solution

Due to bacterial decomposition of urea, ammonia and carbon dioxide gases are produced.
Question 2
1 / -0

Which of the following ammonium salts decomposes on heating to give laughing gas?

A
NH₄NO₃

B
NH₄Cl

C
(NH₄)₂SO₄

D
NH₄NO₃ and (NH₄)₂SO₄

Solution

NH₄NO₃N₂O + 2H₂O
laughing gas

Question 3

1 / -0

Match the following compounds with their uses and choose the correct option given below:

(1) Potassium nitrate	(1) Fertilizer
(2) Calcium nitrate	(2) Photography
(3) Silver nitrate	(3) Gun powder
(4) Tri-nitro glycerine	(4) Explosive

A - 3, B - 1, C - 2, D - 4

A - 4, B - 1, C - 2, D - 3

A - 2, B - 3, C - 4, D - 2

A - 1, B - 2, C - 3, D - 4

Solution

(1) Potassium nitrate	(1) Gun powder
(2) Calcium nitrate	(2) Fertiliser
(3) Silver nitrate	(3) Photography
(4) Tri-nitro glycerine	(4) Explosive

Question 4
1 / -0

Which of the following nitrates does not liberate oxygen gas on heating?

A
Sodium nitrate

B
Ammonium nitrate

C
Lead nitrate

D
Silver nitrate

Solution

Ammonium nitrate liberates nitrous oxide and water on heating. Oxygen is not liberated.
Question 5
1 / -0

Which of the following is/are observed when a glass rod dipped in ammonium hydroxide is brought near the mouth of a jar containing HCl gas?

A
Dense white fumes

B
Reddish-brown fumes

C
Pungent smell

D
Crust formation on the rod

Solution

Dense white fumes are formed around the glass rod. It is because the ammonia vapours on coming in contact with HCl gas form solid ammonium chloride particles which get suspended in the gas and appear like dense white fumes.
NH₄OH(aq) + HCl(aq) NH₄Cl(aq) + H₂O(l)
Question 6
1 / -0

What are the melting and boiling points of liquid HCl?

A
Boiling point: – 85°C and melting point: -114°C

B
Boiling point: 93°C and melting point: 86°C

C
Boiling point: 82° C and melting point: – 30°C

D
Boiling point 113°C and melting point – 90°C

Solution

The melting and boiling points of liquid HCl are 85°C and -114°C, respectively.
Question 7
1 / -0

Which of the following is not a use of HCl?

A
Manufacture of photographic chemicals and drugs

B
Extraction of glue from bones

C
Manufacture of sodium sulphite

D
In tanning and calico industry

Solution

HCl is not used for manufacturing sodium sulphite.
Question 8
1 / -0

For extinguishing fire, we use

A
carbon monoxide

B
hydrogen

C
carbon dioxide

D
marsh gas

Solution

For extinguishing fire, we use carbon dioxide.
Question 9
1 / -0

Which acid is used to prepare carbon monoxide from oxalic acid?

A
Sulphuric acid

B
Formic acid

C
Nitric acid

D
Carbonic acid

Solution

Sulphuric acid is used to prepare carbon monoxide from oxalic acid.

H₂C₂O₄ + H₂SO₄ ------> H₂O + CO + CO₂
Question 10
1 / -0

Which of the following is not a method of preparation of carbon monoxide?

A
By dehydration of oxalic acid

B
By dehydration of formic acid

C
Reduction of carbon dioxide by coke

D
By thermal decomposition of lime stone

Solution

Thermal decomposition of limestone is not used to prepare carbon monoxide because when limestone (calcium carbonate) is strongly heated, until it undergoes thermal decomposition, it forms calcium oxide and carbon dioxide, not carbon monoxide.
Question 11
1 / -0

Which of the following is not a property of carbon monoxide?

A
Tasteless

B
Insoluble in water

C
Oxidising agent

D
No effect on limewater

Solution

Carbon monoxide is not used as an oxidising agent; rather, it is a good reducing agent.
Question 12
1 / -0

Why is carbon monoxide poisonous to living beings?

A
It damages the white blood cells.

B
It prevents red blood cells from absorbing oxygen.

C
It secretes toxins inside the body.

D
It damages the brain cells.

Solution

Carbon monoxide is poisonous to living beings because it prevents red blood cells from absorbing oxygen. It is very dangerous because it sticks to haemoglobin better than oxygen does.
Question 13
1 / -0

Which of the following products is formed when carbon monoxide reacts with chlorine in the presence of sunlight?

A
Phosgene

B
Carbon dioxide

C
Carbon tetrachloride

D
Hydrochloric acid

Solution

When carbon monoxide reacts with chlorine in the presence of sunlight, phosgene will be formed.
Question 14
1 / -0

Why is carbon dioxide passed through U - tube containing anhydrous calcium chloride during its purification?

A
To absorb moisture

B
To remove hydrogen chloride gas

C
To remove soluble impurities

D
To remove sulphur dioxide gas

Solution

Carbon dioxide is passed through U-tube containing anhydrous calcium chloride during its purification to absorb moisture.
Question 15
1 / -0

Why is sulphuric acid not used in the lab preparation of carbon dioxide from calcium carbonate?

A
Because it does not react with calcium carbonate

B
Because it forms a crust of insoluble calcium sulphate

C
Because it produces carbon monoxide

D
Because it forms toxic sulphur dioxide gas

Solution

Sulphuric acid is not used in the lab preparation of carbon dioxide from calcium carbonate because it forms a crust of insoluble calcium sulphate.
Question 16
1 / -0

At what temperature is carbon dioxide solidified to form dry ice?

A
0°C

B
– 4°C

C
– 78°C

D
4°C

Solution

At – 78°C temperature, carbon dioxide is solidified to form dry ice.
Question 17
1 / -0

Why does lime water turn milky when CO₂ gas is passed through it?

A
Due to formation of insoluble calcium carbonate

B
Due to formation of soluble calcium hydrogen carbonate

C
Due to formation of insoluble calcium hydrogen carbonate

D
Due to formation of soluble calcium oxide

Solution

Limewater turns milky when CO₂ gas is passed through it due to the formation of insoluble calcium carbonate.
Question 18
1 / -0

Which of the following is not a use of CO₂?

A
Preparation of aerated drinks

B
Preservation of eatables

C
Used as a reducing agent

D
Relieves gas pressure in stomach

Solution

Carbon dioxide is not used as a reducing agent.
Question 19
1 / -0

Which of the following substances is poisonous?

A
CO₂

B
HCl

C
HNO₃

D
CO

Solution

Carbon monoxide is a poisonous gas.
Question 20
1 / -0

The tape in an audio cassette is coated with

A
copper sulphates

B
ferromagnetic powder

C
mica

D
zinc oxide

Solution

The tape is composed of a thin plastic substance bonded with a coating of ferric oxide powder. This powder is ferromagnetic, which allows for it to become magnetised by a magnetic field. This ability gives magnetic tape two of its most appealing features:
1. You can record anything you want instantly and the tape will remember what you recorded for playback at any time.
2. You can erase the tape and record something else on it any time you like.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Inorganic Chemistry Test - 9

Result

Inorganic Chemistry Test - 9

Score

-

Rank

-

SHARING IS CARING

Question 1

NH3 and CO2

CO2 and H2

NH3 and CO

NH3 and H2

Solution

Question 2

NH4NO3

NH4Cl

(NH4)2SO4

NH4NO3 and (NH4)2SO4

Solution

Question 3

A - 3, B - 1, C - 2, D - 4

A - 4, B - 1, C - 2, D - 3

A - 2, B - 3, C - 4, D - 2

A - 1, B - 2, C - 3, D - 4

Solution

Question 4

Sodium nitrate

Ammonium nitrate

Lead nitrate

Silver nitrate

Solution

Question 5

Dense white fumes

Reddish-brown fumes

Pungent smell

Crust formation on the rod

Solution

Question 6

Boiling point: – 85°C and melting point: -114°C

Boiling point: 93°C and melting point: 86°C

Boiling point: 82° C and melting point: – 30°C

Boiling point 113°C and melting point – 90°C

Solution

Question 7

Manufacture of photographic chemicals and drugs

Extraction of glue from bones

Manufacture of sodium sulphite

In tanning and calico industry

Solution

Question 8

carbon monoxide

hydrogen

carbon dioxide

marsh gas

Solution

Question 9

Sulphuric acid

Formic acid

Nitric acid

Carbonic acid

Solution

Question 10

By dehydration of oxalic acid

By dehydration of formic acid

Reduction of carbon dioxide by coke

By thermal decomposition of lime stone

Solution

Question 11

Tasteless

Insoluble in water

Oxidising agent

No effect on limewater

Solution

Question 12

It damages the white blood cells.

It prevents red blood cells from absorbing oxygen.

It secretes toxins inside the body.

It damages the brain cells.

Solution

NH₃ and CO₂

CO₂ and H₂

NH₃ and CO

NH₃ and H₂

NH₄NO₃

NH₄Cl

(NH₄)₂SO₄

NH₄NO₃ and (NH₄)₂SO₄

CO₂

HNO₃