10 Questions
Which of the following precautions should be taken while preparing the gas?
The apparatus should be airtight and there should be no leakage of gas.
What happens when a mixture of hydrogen and air is brought near a flame?
The mixture explodes violently.
Why is nitric acid not used in the preparation of hydrogen from metals?
Nitric acid is a powerful oxidizing agent.
How can it be determined if all the air has escaped from the apparatus?
By collecting some amount of gas in a test tube and taking it to a flame.
Why should the end of the thistle funnel be dipped under acid?
To prevent gas from escaping from the apparatus.
What happens if a mixture of hydrogen and air is brought near a flame?
It explodes violently.
Which of the following is a precaution that should be taken while preparing the gas?
The apparatus should be airtight and there should be no leakage of gas.
Why is nitric acid not used in the preparation of hydrogen from metals?
It is a powerful oxidizing agent.
What can be done to determine if all the air has escaped from the apparatus?
Collect some amount of gas in a test tube and take it to a flame.
Why should the end of the thistle funnel be dipped under acid?
To prevent gas from escaping from the thistle funnel.
Gas Preparation Precautions Quiz: Test your knowledge on the necessary precautions to take while preparing a potentially explosive gas mixture of hydrogen and air. Learn about ensuring an airtight apparatus, avoiding flames, and safely collecting the gas. Take the quiz now to assess your understanding of gas preparation safety measures.
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