1.Which of the following is most soluble in water and why ?
a.Ag2SO4 b.Hg2SO4 c.MnCO3 d.CaSO4
2.PH of which salt is same for 1M and 5M solution both and why?
a.HCOONa b.C6H5NH3^+Cl c.NH4CN d. NaCN
3.NH4OH is highly soluble in and why ?
a.CuSO4 b.AgNO3 c.NH4Cl d.Both 1&2