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Which of the following is a physical property of carbon(II) oxide?- a)Reacts with water to form carbonic acid
- b)Turns litmus paper blue
- c)Burns with a blue flame
- d)Has a pungent odor
Correct answer is option 'C'. Can you explain this answer?
Which of the following is a physical property of carbon(II) oxide?
a)
Reacts with water to form carbonic acid
b)
Turns litmus paper blue
c)
Burns with a blue flame
d)
Has a pungent odor
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Sun Ray Institute answered |
Carbon(II) oxide burns with a blue flame.
Which of the following is a trioxocarbonate (IV) salt?- a)Na2CO3
- b)KCl
- c)MgSO4
- d)NH4NO3
Correct answer is option 'A'. Can you explain this answer?
Which of the following is a trioxocarbonate (IV) salt?
a)
Na2CO3
b)
KCl
c)
MgSO4
d)
NH4NO3
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Sun Ray Institute answered |
Sodium carbonate (Na2CO3) is a trioxocarbonate (IV) salt.
When a trioxocarbonate (IV) salt is heated, it decomposes to produce:- a)Carbon(II) oxide and water
- b)Carbon(IV) oxide and water
- c)Carbon(II) oxide and carbon(IV) oxide
- d)Carbon(IV) oxide and oxygen
Correct answer is option 'B'. Can you explain this answer?
When a trioxocarbonate (IV) salt is heated, it decomposes to produce:
a)
Carbon(II) oxide and water
b)
Carbon(IV) oxide and water
c)
Carbon(II) oxide and carbon(IV) oxide
d)
Carbon(IV) oxide and oxygen
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Sun Ray Institute answered |
Heating a trioxocarbonate (IV) salt leads to the decomposition of the salt into carbon(IV) oxide and water.
Which of the following sources is responsible for the production of carbon(II) oxide in exhaust fumes?- a)Carbonates
- b)Charcoal
- c)Combustion of hydrocarbons
- d)Photosynthesis
Correct answer is option 'C'. Can you explain this answer?
Which of the following sources is responsible for the production of carbon(II) oxide in exhaust fumes?
a)
Carbonates
b)
Charcoal
c)
Combustion of hydrocarbons
d)
Photosynthesis
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Sun Ray Institute answered |
The combustion of hydrocarbons in vehicles and engines produces carbon(II) oxide in exhaust fumes.
How does carbon(II) oxide affect the human body?- a)It is beneficial for respiratory function
- b)It enhances blood circulation
- c)It combines irreversibly with hemoglobin, reducing oxygen transport
- d)It helps in maintaining pH balance
Correct answer is option 'C'. Can you explain this answer?
How does carbon(II) oxide affect the human body?
a)
It is beneficial for respiratory function
b)
It enhances blood circulation
c)
It combines irreversibly with hemoglobin, reducing oxygen transport
d)
It helps in maintaining pH balance
|
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Sun Ray Institute answered |
Carbon(II) oxide combines irreversibly with hemoglobin in the blood, reducing its oxygen-carrying capacity, which can lead to oxygen deprivation.
The action of heat on a trioxocarbonate (IV) salt is an example of:- a)Thermal decomposition
- b)Combustion
- c)Oxidation
- d)Reduction
Correct answer is option 'A'. Can you explain this answer?
The action of heat on a trioxocarbonate (IV) salt is an example of:
a)
Thermal decomposition
b)
Combustion
c)
Oxidation
d)
Reduction
|
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Sun Ray Institute answered |
The action of heat on a trioxocarbonate (IV) salt is an example of thermal decomposition.
Destructive distillation of coal produces which of the following products?- a)Coal tar
- b)Coal gas
- c)Coal ash
- d)Coal ore
Correct answer is option 'A'. Can you explain this answer?
Destructive distillation of coal produces which of the following products?
a)
Coal tar
b)
Coal gas
c)
Coal ash
d)
Coal ore
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Sun Ray Institute answered |
Destructive distillation of coal produces coal tar, coal gas, and coke as the main products.
Which of the following methods is used for the laboratory preparation of carbon(IV) oxide?- a)Oxidation of carbon monoxide
- b)Heating sodium bicarbonate
- c)Combustion of hydrocarbons
- d)Reduction of carbon dioxide
Correct answer is option 'A'. Can you explain this answer?
Which of the following methods is used for the laboratory preparation of carbon(IV) oxide?
a)
Oxidation of carbon monoxide
b)
Heating sodium bicarbonate
c)
Combustion of hydrocarbons
d)
Reduction of carbon dioxide
|
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Sun Ray Institute answered |
Carbon(IV) oxide is prepared in the laboratory by oxidizing carbon monoxide using air or oxygen.
Which of the following statements is true regarding the properties of carbon(II) oxide?- a)It is colorless and odorless
- b)It is a strong oxidizing agent
- c)It is lighter than air
- d)It supports combustion
Correct answer is option 'A'. Can you explain this answer?
Which of the following statements is true regarding the properties of carbon(II) oxide?
a)
It is colorless and odorless
b)
It is a strong oxidizing agent
c)
It is lighter than air
d)
It supports combustion
|
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Sun Ray Institute answered |
Carbon(II) oxide is colorless and odorless.
Which of the following is used as a reducing agent in the extraction of metals from their ores?- a)Charcoal
- b)Coke
- c)Wood
- d)Methane
Correct answer is option 'A'. Can you explain this answer?
Which of the following is used as a reducing agent in the extraction of metals from their ores?
a)
Charcoal
b)
Coke
c)
Wood
d)
Methane
|
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Sun Ray Institute answered |
Charcoal is commonly used as a reducing agent in the extraction of metals from their ores.
What is the chemical formula of carbon(II) oxide?- a)CO2
- b)CO
- c)CO3
- d)C2O
Correct answer is option 'B'. Can you explain this answer?
What is the chemical formula of carbon(II) oxide?
a)
CO2
b)
CO
c)
CO3
d)
C2O
|
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Sun Ray Institute answered |
The chemical formula of carbon(II) oxide is CO.
Which type of coke has the highest carbon content?- a)Foundry coke
- b)Metallurgical coke
- c)Petroleum coke
- d)Gas coke
Correct answer is option 'B'. Can you explain this answer?
Which type of coke has the highest carbon content?
a)
Foundry coke
b)
Metallurgical coke
c)
Petroleum coke
d)
Gas coke
|
|
Sun Ray Institute answered |
Metallurgical coke has the highest carbon content among the different types of coke.
Carbon(II) oxide is commonly known as:- a)Carbon monoxide
- b)Carbon dioxide
- c)Carbonate
- d)Carbonic acid
Correct answer is option 'A'. Can you explain this answer?
Carbon(II) oxide is commonly known as:
a)
Carbon monoxide
b)
Carbon dioxide
c)
Carbonate
d)
Carbonic acid
|
|
Sun Ray Institute answered |
Carbon(II) oxide is commonly known as carbon monoxide.
How can carbon(II) oxide be distinguished from carbon dioxide?- a)Carbon(II) oxide is acidic, while carbon dioxide is basic
- b)Carbon(II) oxide turns lime water milky, while carbon dioxide does not
- c)Carbon(II) oxide is a greenhouse gas, while carbon dioxide is not
- d)Carbon(II) oxide is denser than carbon dioxide
Correct answer is option 'B'. Can you explain this answer?
How can carbon(II) oxide be distinguished from carbon dioxide?
a)
Carbon(II) oxide is acidic, while carbon dioxide is basic
b)
Carbon(II) oxide turns lime water milky, while carbon dioxide does not
c)
Carbon(II) oxide is a greenhouse gas, while carbon dioxide is not
d)
Carbon(II) oxide is denser than carbon dioxide
|
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Sun Ray Institute answered |
Carbon(II) oxide turns lime water milky, while carbon dioxide does not show this reaction.
What is the observation when a solution containing 
ions reacts with acidified potassium manganate (VII) solution?- a)The solution turns from purple to colorless
- b)The solution turns from pink to green
- c)Effervescence occurs, releasing a gas
- d)A white precipitate forms
Correct answer is option 'A'. Can you explain this answer?
What is the observation when a solution containing ions reacts with acidified potassium manganate (VII) solution?
ions reacts with acidified potassium manganate (VII) solution?a)
The solution turns from purple to colorless
b)
The solution turns from pink to green
c)
Effervescence occurs, releasing a gas
d)
A white precipitate forms
|
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Sun Ray Institute answered |
The presence of ions in a solution can be confirmed by the color change of acidified potassium manganate (VII) solution from purple to colorless.
ions in a solution can be confirmed by the color change of acidified potassium manganate (VII) solution from purple to colorless.Which of the following is NOT a use of carbon(IV) oxide?- a)Carbonation of beverages
- b)Fire extinguisher
- c)Anesthetic agent
- d)Ripening of fruits
Correct answer is option 'B'. Can you explain this answer?
Which of the following is NOT a use of carbon(IV) oxide?
a)
Carbonation of beverages
b)
Fire extinguisher
c)
Anesthetic agent
d)
Ripening of fruits
|
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Sun Ray Institute answered |
Heating a trioxocarbonate (IV) salt leads to the decomposition of the salt into carbon(IV) oxide and water.
Synthetic gas is a mixture of:- a)Carbon dioxide and methane
- b)Carbon monoxide and nitrogen
- c)Carbon monoxide and hydrogen
- d)Carbon dioxide and hydrogen
Correct answer is option 'C'. Can you explain this answer?
Synthetic gas is a mixture of:
a)
Carbon dioxide and methane
b)
Carbon monoxide and nitrogen
c)
Carbon monoxide and hydrogen
d)
Carbon dioxide and hydrogen
|
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Sun Ray Institute answered |
Synthetic gas is a mixture of carbon monoxide and hydrogen.
How does carbon(IV) oxide extinguish a flame?- a)By lowering the temperature of the flame
- b)By removing oxygen from the combustion process
- c)By producing water vapor
- d)By releasing carbon monoxide
Correct answer is option 'B'. Can you explain this answer?
How does carbon(IV) oxide extinguish a flame?
a)
By lowering the temperature of the flame
b)
By removing oxygen from the combustion process
c)
By producing water vapor
d)
By releasing carbon monoxide
|
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Sun Ray Institute answered |
Carbon(IV) oxide displaces oxygen, leading to the extinguishing of a flame.
The primary use of synthetic gas is in:- a)Power generation
- b)Fertilizer production
- c)Production of plastics
- d)Water purification
Correct answer is option 'A'. Can you explain this answer?
The primary use of synthetic gas is in:
a)
Power generation
b)
Fertilizer production
c)
Production of plastics
d)
Water purification
|
|
Sun Ray Institute answered |
Synthetic gas is primarily used in power generation.
Coke is produced by the destructive distillation of:- a)Wood
- b)Peat
- c)Coal
- d)Lignite
Correct answer is option 'C'. Can you explain this answer?
Coke is produced by the destructive distillation of:
a)
Wood
b)
Peat
c)
Coal
d)
Lignite
|
|
Sun Ray Institute answered |
Coke is produced by the destructive distillation of coal.
What is the primary source of carbon(II) oxide in fire?- a)Burning wood
- b)Oxidation of metals
- c)Natural gas leakage
- d)Decomposition of organic matter
Correct answer is option 'A'. Can you explain this answer?
What is the primary source of carbon(II) oxide in fire?
a)
Burning wood
b)
Oxidation of metals
c)
Natural gas leakage
d)
Decomposition of organic matter
|
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Sun Ray Institute answered |
Burning wood is the primary source of carbon(II) oxide in fires.
What is the color and odor of carbon(IV) oxide?- a)Colorless and odorless
- b)Colorless and has a pungent odor
- c)Colorless and smells like rotten eggs
- d)Yellow and has a sweet odor
Correct answer is option 'A'. Can you explain this answer?
What is the color and odor of carbon(IV) oxide?
a)
Colorless and odorless
b)
Colorless and has a pungent odor
c)
Colorless and smells like rotten eggs
d)
Yellow and has a sweet odor
|
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Sun Ray Institute answered |
Carbon(IV) oxide is a colorless gas and has no distinct odor.
Which of the following is not a type of coal?- a)Anthracite
- b)Lignite
- c)Bituminous
- d)Gasoline
Correct answer is option 'D'. Can you explain this answer?
Which of the following is not a type of coal?
a)
Anthracite
b)
Lignite
c)
Bituminous
d)
Gasoline
|
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Sun Ray Institute answered |
Gasoline is not a type of coal. The correct options for types of coal are anthracite, lignite, and bituminous.
Which type of coal has the highest carbon content?- a)Anthracite
- b)Lignite
- c)Bituminous
- d)Peat
Correct answer is option 'A'. Can you explain this answer?
Which type of coal has the highest carbon content?
a)
Anthracite
b)
Lignite
c)
Bituminous
d)
Peat
|
|
Sun Ray Institute answered |
Anthracite has the highest carbon content among the types of coal.
Which of the following methods is commonly used for the laboratory preparation of carbon(II) oxide?- a)Heating limestone
- b)Combustion of wood
- c)Reaction of hydrochloric acid with marble chips
- d)Electrolysis of water
Correct answer is option 'C'. Can you explain this answer?
Which of the following methods is commonly used for the laboratory preparation of carbon(II) oxide?
a)
Heating limestone
b)
Combustion of wood
c)
Reaction of hydrochloric acid with marble chips
d)
Electrolysis of water
|
|
Sun Ray Institute answered |
Carbon(II) oxide is commonly prepared by reacting hydrochloric acid with marble chips to produce carbon dioxide gas, which can be further reduced to carbon(II) oxide.
What is the product obtained when wood is subjected to destructive distillation?- a)Charcoal
- b)Coke
- c)Methane
- d)Butane
Correct answer is option 'A'. Can you explain this answer?
What is the product obtained when wood is subjected to destructive distillation?
a)
Charcoal
b)
Coke
c)
Methane
d)
Butane
|
|
Sun Ray Institute answered |
Charcoal is the product obtained when wood is subjected to destructive distillation. Coke is obtained from coal.
What happens when carbon(II) oxide is bubbled through lime water?- a)The lime water turns blue
- b)The lime water turns green
- c)The lime water turns milky
- d)The lime water remains unchanged
Correct answer is option 'C'. Can you explain this answer?
What happens when carbon(II) oxide is bubbled through lime water?
a)
The lime water turns blue
b)
The lime water turns green
c)
The lime water turns milky
d)
The lime water remains unchanged
|
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Sun Ray Institute answered |
Carbon(II) oxide reacts with lime water to produce a milky precipitate of calcium carbonate.
How can you test for the presence of ions in a solution?- a)Add acidified potassium manganate (VII) solution
- b)Bubble the gas produced through lime water
- c)Perform a flame test
- d)Perform a precipitation reaction with silver nitrate
Correct answer is option 'B'. Can you explain this answer?
How can you test for the presence of ions in a solution?
ions in a solution?a)
Add acidified potassium manganate (VII) solution
b)
Bubble the gas produced through lime water
c)
Perform a flame test
d)
Perform a precipitation reaction with silver nitrate
|
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Sun Ray Institute answered |
ions produce carbon dioxide gas when reacted with an acid. Passing this gas through lime water results in the formation of a white precipitate.What is the main use of coke?- a)Fuel in power plants
- b)Fuel in automobiles
- c)Reducing agent in metallurgy
- d)Fertilizer production
Correct answer is option 'C'. Can you explain this answer?
What is the main use of coke?
a)
Fuel in power plants
b)
Fuel in automobiles
c)
Reducing agent in metallurgy
d)
Fertilizer production
|
|
Sun Ray Institute answered |
The main use of coke is as a reducing agent in metallurgy, particularly in the
Carbon(IV) oxide is commonly known as:- a)Carbon monoxide
- b)Carbon dioxide
- c)Carbon tetrachloride
- d)Carbon disulfide
Correct answer is option 'B'. Can you explain this answer?
Carbon(IV) oxide is commonly known as:
a)
Carbon monoxide
b)
Carbon dioxide
c)
Carbon tetrachloride
d)
Carbon disulfide
|
|
Sun Ray Institute answered |
Carbon(IV) oxide is commonly known as carbon dioxide.
Chapter doubts & questions for Carbon - Chemistry for JAMB 2025 is part of JAMB exam preparation. The chapters have been prepared according to the JAMB exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for JAMB 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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Chemistry for JAMB
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