Question

1
Zn+ H2SO4
2A1 + 6HC1
Cu + MgSO4
2A1 + 2NaOH + 2H2O
Zn + CaSO4​

Answer 1

Answer:

Zn + H2SO4 > ZNSO4 +H2

2Al + 6HCl > 2AlCl3 + 3H2

Cu + MgSO4 > Cu + MgSO4 (as Mg is more reactive than Cu the reaction won't happen...)

2Al + 2 NaOH +H2O > Na3Al +H2 +H2O...

The last reaction will not take place as well because Zn is less reactive than Ca.....