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Consider the following pairs:
- Grey hydrogen: Hydrogen not produced from fossil fuels
- Blue hydrogen: Hydrogen generated from fossil fuels with carbon capture and storage options.
- Green hydrogen: Hydrogen generated entirely from renewable power sources
Which of the above pairs are correctly matched?
- a)1, 2
- b)2, 3
- c)3 only
- d)1, 2, 3
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Consider the following pairs: Grey hydrogen: Hydrogen not produced fro...
The sources and processes by which hydrogen is derived, are categorised by colour tabs.
Hydrogen produced from fossil fuels is called grey hydrogen; this constitutes the bulk of the hydrogen produced today.
Hydrogen generated from fossil fuels with carbon capture and storage options is called blue hydrogen;
Hydrogen generated entirely from renewable power sources is called green hydrogen. In the last process, electricity generated from renewable energy is used to split water into hydrogen and oxygen.
Most Upvoted Answer
Consider the following pairs: Grey hydrogen: Hydrogen not produced fro...
The correct pairs are as follows:
b) Blue hydrogen: Hydrogen generated from fossil fuels with carbon capture and storage options.
c) Green hydrogen: Hydrogen generated entirely from renewable power sources.
Explanation:
Hydrogen is a versatile and clean energy carrier that can be used in various sectors such as transportation, industry, and power generation. It can be produced from different sources, and the environmental impact of hydrogen production depends on the method used.
1. Grey hydrogen: Hydrogen not produced from fossil fuels.
Grey hydrogen refers to hydrogen that is produced from fossil fuels, such as natural gas or coal, without any carbon capture or storage options. This means that the production process emits greenhouse gases into the atmosphere, contributing to climate change. Grey hydrogen is the most common type of hydrogen produced today.
2. Blue hydrogen: Hydrogen generated from fossil fuels with carbon capture and storage options.
Blue hydrogen is produced from fossil fuels, similar to grey hydrogen. However, in the case of blue hydrogen, carbon capture and storage (CCS) technologies are used to capture and store the carbon emissions generated during the production process. CCS helps to prevent the release of greenhouse gases into the atmosphere, reducing the environmental impact of hydrogen production.
3. Green hydrogen: Hydrogen generated entirely from renewable power sources.
Green hydrogen is produced using renewable power sources, such as solar or wind energy, through a process called electrolysis. Electrolysis involves splitting water molecules into hydrogen and oxygen using electricity. Since renewable energy is used as the power source, the production of green hydrogen has no direct emissions of greenhouse gases. It is considered the most environmentally friendly form of hydrogen production.
In conclusion, blue hydrogen is generated from fossil fuels with carbon capture and storage options, while green hydrogen is produced entirely from renewable power sources. Grey hydrogen, on the other hand, is hydrogen produced from fossil fuels without any carbon capture or storage options.
b) Blue hydrogen: Hydrogen generated from fossil fuels with carbon capture and storage options.
c) Green hydrogen: Hydrogen generated entirely from renewable power sources.
Explanation:
Hydrogen is a versatile and clean energy carrier that can be used in various sectors such as transportation, industry, and power generation. It can be produced from different sources, and the environmental impact of hydrogen production depends on the method used.
1. Grey hydrogen: Hydrogen not produced from fossil fuels.
Grey hydrogen refers to hydrogen that is produced from fossil fuels, such as natural gas or coal, without any carbon capture or storage options. This means that the production process emits greenhouse gases into the atmosphere, contributing to climate change. Grey hydrogen is the most common type of hydrogen produced today.
2. Blue hydrogen: Hydrogen generated from fossil fuels with carbon capture and storage options.
Blue hydrogen is produced from fossil fuels, similar to grey hydrogen. However, in the case of blue hydrogen, carbon capture and storage (CCS) technologies are used to capture and store the carbon emissions generated during the production process. CCS helps to prevent the release of greenhouse gases into the atmosphere, reducing the environmental impact of hydrogen production.
3. Green hydrogen: Hydrogen generated entirely from renewable power sources.
Green hydrogen is produced using renewable power sources, such as solar or wind energy, through a process called electrolysis. Electrolysis involves splitting water molecules into hydrogen and oxygen using electricity. Since renewable energy is used as the power source, the production of green hydrogen has no direct emissions of greenhouse gases. It is considered the most environmentally friendly form of hydrogen production.
In conclusion, blue hydrogen is generated from fossil fuels with carbon capture and storage options, while green hydrogen is produced entirely from renewable power sources. Grey hydrogen, on the other hand, is hydrogen produced from fossil fuels without any carbon capture or storage options.
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Consider the following pairs: Grey hydrogen: Hydrogen not produced from fossil fuels Blue hydrogen: Hydrogen generated from fossil fuels with carbon capture and storage options. Green hydrogen: Hydrogen generated entirely from renewable power sourcesWhich of the above pairs are correctly matched?a)1, 2b)2, 3c)3 onlyd)1, 2, 3Correct answer is option 'B'. Can you explain this answer?
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Consider the following pairs: Grey hydrogen: Hydrogen not produced from fossil fuels Blue hydrogen: Hydrogen generated from fossil fuels with carbon capture and storage options. Green hydrogen: Hydrogen generated entirely from renewable power sourcesWhich of the above pairs are correctly matched?a)1, 2b)2, 3c)3 onlyd)1, 2, 3Correct answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following pairs: Grey hydrogen: Hydrogen not produced from fossil fuels Blue hydrogen: Hydrogen generated from fossil fuels with carbon capture and storage options. Green hydrogen: Hydrogen generated entirely from renewable power sourcesWhich of the above pairs are correctly matched?a)1, 2b)2, 3c)3 onlyd)1, 2, 3Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following pairs: Grey hydrogen: Hydrogen not produced from fossil fuels Blue hydrogen: Hydrogen generated from fossil fuels with carbon capture and storage options. Green hydrogen: Hydrogen generated entirely from renewable power sourcesWhich of the above pairs are correctly matched?a)1, 2b)2, 3c)3 onlyd)1, 2, 3Correct answer is option 'B'. Can you explain this answer?.
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