Question

The strongest reducing agent is:

• A. $K$
• B. $Mg$
• C. $Al$
• D. $Br$

Answer 1

The correct option is A $K$

$K={15}^2{25}^{2}2p6{35}^{2}3p6{45}^1$

$Mg={15}^2{25}^{2}2p6{35}^2$

$Al={15}^2{25}^{2}2p^6{35}^{2}3p1$

$Br={15}^2{25}^{2}2p6{35}^{2}3p6{45}^{2}3d^{10}4p5$

Reducing ability in defined by how easily of a molecular

or atom relearn its electrons Now in the atom

K early the relearn a electrons in 4 s orbital to

acquire the stable electronic configuration of Ar

So, k is strongest reducing agent