Question

The diagram below shows set-up for preparing hydrogen gas by a Form 3 Student.
         

1. Identify three mistakes with the set-up
2. On the diagram make suitable modification to solve the mistakes in( a) above 
3. What is the test for hydrogen gas

Answer 1

1.  
   1. Thistle funnel too short
   2. Use of sodium metal.
   3. Wrong gas collection method.
2. 
   
3. Burns with a pop sound