1- It is true because one mole of any substance contains 6.02 x 10^23 particles, and one mole of H2SO4 contains 2 x6.02x10^23 of hydrogen, 1x6.02x10^23 sulfur, and 4x6.02x10^23 oxygen
2-Not true because it is not a weak acid so the concentration of hydrogen ions would be higher than the concentration of HSO4
3- Not true because sulfur contains 16 electrons and 4 oxygens contain 64 electrons
Double check tho cuz iam not a 100% sure