The bond energies of H - H, X - X and H - X are 104 K.Cal, 38K.Cal and 138 K.Cal respectively the electronegativity of 'X' is [sqrt(67) = 8.18]

The bond energies of H - H, X - X and H - X are 104 K.Cal, 38K.Cal and

1.	The bond energies of H - H, X - X and H - X are 104 K.Cal, 38K.Cal and 138 K.Cal respectively the electronegativity of 'X' is [sqrt(67) = 8.18]
Answer» 3 3.5 3.8 1.7 Answer :C