1. Which of the following reaction will takes place? Give reason.
Zn+FeSO4 -> ZnSO4+Fe

true

hope that

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

there is none because earth is stationary and flat.