Question

in what reaction is hydrogen gas liberated? describe with help of an activity

Answer 1

hydrogen is the lightest element .hydrogen can be prepared by the rection of metals with water , dilute acids and alkalis.....

example of reaction with water...

2K+2H2O------}2KOH+H2

example of reaction with dilute acids...,.

Zn + H2SO4--------}ZnSO4+H2

THE LABORATORY WAY TO PREPARE HYDROGEN GAS IS.....

dilute sulphuric acid in granulated zinc in a conical flask produces hydrogen...

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