Hydrogen and its Compounds - Real World Applications
Q. In which of the following processes is hydrogen used to reduce metal ores?
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A.
Electrolysis
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B.
Hydrometallurgy
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C.
Pyrometallurgy
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D.
Hydrogen reduction
Solution
Hydrogen reduction is a process where hydrogen gas is used to reduce metal ores to their metallic form.
Correct Answer: D — Hydrogen reduction
Q. What is the effect of hydrogen bonding on the boiling point of water?
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A.
Increases boiling point
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B.
Decreases boiling point
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C.
No effect
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D.
Varies with pressure
Solution
Hydrogen bonding significantly increases the boiling point of water compared to other similar-sized molecules.
Correct Answer: A — Increases boiling point
Q. What is the primary environmental benefit of using hydrogen as a fuel?
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A.
Produces carbon dioxide
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B.
Produces water vapor
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C.
Releases sulfur dioxide
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D.
Generates nitrogen oxides
Solution
The primary environmental benefit of using hydrogen as a fuel is that it produces only water vapor when combusted, with no carbon emissions.
Correct Answer: B — Produces water vapor
Q. What is the primary use of hydrogen in the industrial sector?
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A.
Fertilizer production
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B.
Plastic manufacturing
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C.
Fuel cells
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D.
Water treatment
Solution
Hydrogen is primarily used in the Haber process for the production of ammonia, which is a key component in fertilizers.
Correct Answer: A — Fertilizer production
Q. What is the role of hydrogen in the process of hydrogenation?
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A.
Oxidizing agent
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B.
Reducing agent
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C.
Catalyst
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D.
Solvent
Solution
In hydrogenation, hydrogen acts as a reducing agent, adding hydrogen to unsaturated organic compounds.
Correct Answer: B — Reducing agent
Q. Which of the following compounds is formed when hydrogen reacts with chlorine?
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A.
Hydrochloric acid
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B.
Hydrogen chloride
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C.
Chlorine gas
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D.
Hydrogen peroxide
Solution
When hydrogen reacts with chlorine, it forms hydrogen chloride (HCl), which is a gas at room temperature.
Correct Answer: B — Hydrogen chloride
Q. Which of the following is a common application of hydrogen in energy production?
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A.
Batteries
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B.
Nuclear reactors
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C.
Fuel cells
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D.
Solar panels
Solution
Hydrogen is commonly used in fuel cells to produce electricity through a chemical reaction with oxygen.
Correct Answer: C — Fuel cells
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