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Laboratory Preparation of Dihydrogen Video Lecture | Chemistry for JEE Main & Advanced

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FAQs on Laboratory Preparation of Dihydrogen Video Lecture - Chemistry for JEE Main & Advanced

1. What is the laboratory procedure for preparing dihydrogen?
Ans. The laboratory procedure for preparing dihydrogen involves the reaction of a metal with an acid or water. For example, zinc can react with hydrochloric acid or sodium can react with water to produce dihydrogen gas.
2. What are the safety precautions to be taken during the preparation of dihydrogen in a laboratory?
Ans. Safety precautions during the preparation of dihydrogen in a laboratory include wearing appropriate protective gear such as gloves and goggles, working in a well-ventilated area, and keeping flammable materials away from the experimental setup. Additionally, it is important to handle the chemicals carefully and follow proper disposal protocols.
3. Can dihydrogen be prepared using any metal and acid combination?
Ans. No, dihydrogen cannot be prepared using any metal and acid combination. Only certain metals, such as zinc and magnesium, react with specific acids like hydrochloric acid to produce dihydrogen gas. The reactivity of different metals with acids varies, and not all combinations result in the production of dihydrogen.
4. Is it possible to prepare dihydrogen in the laboratory without using metals?
Ans. Yes, it is possible to prepare dihydrogen in the laboratory without using metals. One method involves the electrolysis of water, where an electric current is passed through water to break it down into dihydrogen and dioxygen gases. This process does not involve the use of metals but requires a source of electricity.
5. What are the common uses of dihydrogen prepared in the laboratory?
Ans. Dihydrogen prepared in the laboratory has various uses. It is commonly used as a reducing agent in chemical reactions, as a fuel for rockets and balloons, and in the production of ammonia, which is an essential component in the manufacturing of fertilizers. Additionally, dihydrogen is used in the food industry for hydrogenation processes and as a coolant in power plants.
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