Question

list down the observations in activity

activity- formation of hydrogen gas by the action of dilute sulphuric acid on zinc​

Answer 1

hydrogen gas is formed by the action of h2so4 and zn

Zn + H2SO4= ZnSO4 + H2…

This reaction can also be written as:

Zn + 2H+ = Zn+² + H2…..( considering- reaction is taking place at standard conditions)

V can c from above reation that :

1.Zn is oxidized

2. Hydrogen is reduced

Thus for the above reaction to occur in forward direction…..Zn should have more tendency to itself get oxidized and hydrogen shld have more tendency to itself get reduced..r8…

For this to happen..the standard reduction potential of H2 should b more( sice it has to b reduced)…n for Zn should b less.. (since this fella has to b oxidized)…comparatively…..then only the reaction will move in frwrd direction..

Since v know that reduction potential for zinc=-0.763 …and for hydrogen is=0

Which satisfies our condition..thus…t he reaction will occur in forward direction…. ..and it will b:

Zn + H2SO4 = ZnSO4 + H2….

If there r still sm doubt regarding this that exists them plz do let me know…hope this clears u up…