Question

To show the reaction of zinc granules with dilute sulphuric acid and testing hydrogen gas by burning

Answer 1

Answer:

The reaction produces zinc sulphate and hydrogen gas

To test for hydrogen introduce a burning splint it burns with a pop sound

Explanation:

Zinc reacts with sulphuric acid to produce zinc sulphate and hydrogen gas

Generally acids react with metals to produce a metal salt and hydrogen gas

Hydrogen gas is tested by introducing a burning wooden splint in a jar of hydrogen

The splint burns with a pop sound.

Answer 2

Explanation:

 The equation for this reaction is: 2 Al(s) +Fe 2O 3(s) --> 2Fe (s) + Al 2O 3 (s). A thermite reaction is basically iron oxide (rust ) reacting with aluminum to produce molten iron. ✒ In this acid -matel reaction ( also called displacement reaction) HYDROGEN gas evolved