Which of the following statements is true ?

Options

A. Silican exhibits 4 coordination number in its compounds
B. Bond energy of `F_(2)` is less than `Cl_(2)`
C. `Mn(III)` oxidation state is more stable than `Mn(II)` in aqueous state
D. Elements of 15th group shows only +3 and +5 oxidation states

Answer

B

Explanation

Bond energy of `F_(2)` is less than `Cl_(2)` because in `F_(2)` molecule electron-electron repulsion of `2p`-orbital of two function atom is maximum in comparison to the repulsion of `3p`-orbitals of two chlorine atom. So, less amount of energy is required to break the bond of `F_(2)` is comparison to `Cl_(2)`.