Question

5 observations when dilute sulphuric acid is added to zinc granuels

Answer 1

a) gas bubbles are formed on zinc granules.
b)The matchstick brought near it burns with a pop sound,which means that the gas is hydrogen.
c)Test tube becomes hot→exothermic reaction.
d)Zn+H2SO4→ ZnSO4 +H2
Its a displacement reaction.
e)Metal + Acid → Salt + Hydrogen.proved
Thats it I guess dude ..hope this helps u..

Answer 2

1) Evolution of hydrogen gas.
2) Change in temperature.
Only two observations can be seen when Duke sulphuric acid is added to zinc granules...