Question

describe an activity formation of hydrogen gas by the action of dulite HCl on zinc and testing of H2 gas

Note : answer should be written by given
Aim, materials required, procedure, observation, result, precautions, cautions, and conclution

if a invalid answer it will be reported​

Answer 1

Explanation:

The experiment is done first on a smaller scale using test tubes (lesson 1 below), with no attempt to recover the salts formed. This establishes that hydrogen production is a characteristic property of the reaction of metals and acids. It can then be done on a larger scale (lesson 2 below), and the salts formed can be recovered by crystallisation.

Lesson 1 is a series of test tube experiments in which each working group establishes as a common feature that hydrogen is given off as metals react with an acid – if the metal reacts at all. This should take around 40 minutes, and most classes should be able to do this version. Each working group needs a small selection of metals and acids to test.

The range of metals and acids tested can be extended to a teacher demonstration in the concluding part of this lesson.

Lesson 2, in which the salt formed is recovered by crystallisation, takes longer, and the