Question

Which one of the following statements is/are correct?

• A. Due to high electronegativity and tendency to gain electrons, halogens are good reducing agents.
• B. The elements having low values of ionisation energies act as strong reducing agent.
• C. The formation of $B{e}^{-}\left(g\right)$ from $Be\left(g\right)$ is an endothermic process.
• D. None of the above.

Answer 1

Answer: (B), (C)

The correct options are
B The elements having low values of ionisation energies act as strong reducing agent.
C The formation of $B{e}^{-}\left(g\right)$ from $Be\left(g\right)$ is an endothermic process.

A) Halogens are good oxidising agents due to high electronegativity and tendency to gain electrons. $F_2$ can even oxidise water to oxygen.

B) Elements having low ionization potential can easily loose electrons. Hence alkali metals are good reducing agents.

C) Be has fully filled or stable electronic configuration and hence it has positive electron gain enthalpy.