s and p blocks elements mcqs
1. Which one of the following has metallic radii? a) Sodium b) Magnesium c) Aluminium d) silicon D 2. ionization energy of 3 rd period break down at a) Al and S b) Na and Mg c) Si and P d) Cl and Ar A 3. Which one of the fsollowing is best conductor? a) Na b) Mg c) Al d) Si C 4. Which one has high melting point? a) Na b) Mg d) Al d) Si D 5. Which one has highest boiling point? a) Na b) Mg c) Al d) Si D 6. Which one of the following has highest boiling point and melting point? a) P b) S c) Cl d) Ar ...