Why the end of the thistle funnel should be dipped under acid

1.	Why the end of the thistle funnel should be dipped under acid
Answer» Explanation: The end of the thistle FUNNEL should be DIPPED under acid so as to PREVENT the gas from escaping from the thistle funnel. Dilute sulphuric acid cannot be replaced by concentrated acid in the preparation of HYDROGEN because it is a strong oxidising agent and it will produce sulphur dioxide.

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Explanation:

The end of the thistle FUNNEL should be DIPPED under acid so as to PREVENT the gas from escaping from the thistle funnel. Dilute sulphuric acid cannot be replaced by concentrated acid in the preparation of HYDROGEN because it is a strong oxidising agent and it will produce sulphur dioxide.

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Why the end of the thistle funnel should be dipped under acid​

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Why the end of the thistle funnel should be dipped under acid