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Question Bank (Solutions): Hydrogen | Chemistry Class 11 - NEET PDF Download

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FAQs on Question Bank (Solutions): Hydrogen - Chemistry Class 11 - NEET

1. What is hydrogen and why is it important?
Ans. Hydrogen is a chemical element that is the lightest and most abundant in the universe. It plays a crucial role in a variety of industries, including energy, transportation, and manufacturing. Its importance lies in its potential as a clean and sustainable energy source, as it can be produced from renewable sources and used to generate electricity without emitting greenhouse gases.
2. How is hydrogen produced?
Ans. Hydrogen can be produced through various methods, including steam methane reforming, electrolysis, and biomass gasification. Steam methane reforming is the most common method, where natural gas reacts with steam to produce hydrogen and carbon dioxide. Electrolysis involves passing an electric current through water to separate hydrogen and oxygen molecules. Biomass gasification converts organic materials, such as agricultural waste or wood, into hydrogen.
3. Can hydrogen be used as a fuel for vehicles?
Ans. Yes, hydrogen can be used as a fuel for vehicles. Hydrogen fuel cell vehicles (FCVs) use hydrogen to generate electricity, which powers an electric motor. The only byproduct of this process is water vapor, making hydrogen FCVs emission-free. However, the infrastructure for hydrogen refueling stations is currently limited, which poses a challenge for the widespread adoption of hydrogen-powered vehicles.
4. What are the advantages of using hydrogen as an energy source?
Ans. There are several advantages of using hydrogen as an energy source. Firstly, hydrogen is a clean fuel, as it does not produce greenhouse gas emissions when used in fuel cells. Secondly, it is highly efficient, with fuel cells converting hydrogen to electricity at an efficiency of 50-60%. Additionally, hydrogen can be produced from renewable sources, such as wind and solar power, making it a sustainable energy option.
5. What are the challenges in implementing hydrogen as an energy solution?
Ans. While hydrogen offers numerous benefits, there are challenges in implementing it as an energy solution. One major challenge is the cost of production and storage of hydrogen, which is currently higher compared to conventional fuels. Another challenge is the limited infrastructure for hydrogen refueling stations, which restricts the adoption of hydrogen-powered vehicles. Additionally, ensuring the safety of hydrogen storage and transportation requires careful consideration and technological advancements.
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