Question

list safety precautions to be taken during laboratory preparation of hydrogen.​

Answer 1

Answer:

• The apparatus should be airtight and there should be no leakage of gas
• There should be no flame burning near the apparatus
• The gas should be collected only after all the air in the apparatus has escaped
• The end of the thistle funnel should be dipped under acid so as to prevent gas from escaping from the thistle funnel

Answer 2

Answer:

Never smoke near a place where hydrogen is generated or being used. Remove all possible sources of flame and sparks. Hydrogen should only be generated and used in a well ventilated out door area. Precautions must be taken to remove all possibilities of fire or explosion.