Question

Ionization energy of hydrogen is.

• A. Equal to that of chlorine
• B. Lesser than that of chlorine
• C. Slightly higher than that of chlorine
• D. Much higher than that of chlorine

Answer 1

Answer: (C)

Slightly higher than that of chlorine

Answer 2

IE of H is 1312 kJ/mole.

IE of Cl is 1255 kJ/mole.