Among the following complexes, the one that has highest enthalpy of hydration is

Question

Among the following complexes, the one that has highest enthalpy of hydration is (A) [Co(H2O)6]2+ (B) [Mn(H2O)6]2+ (C) [V(H2O)6]2+ (D) [Cr(H2O)6]2+

Tardigrade Admin · Accepted Answer

[V(H2O)6]2+ has V2+ metal having 3d3 electronic configuration due to which it has maximum negative value of CFSE out of all. Hence, has maximum enthalpy of hydration.

Q. Among the following complexes, the one that has highest enthalpy of hydration is

$[C o (H_{2} O)_{6}]^{2 +}$

$[M n (H_{2} O)_{6}]^{2 +}$

$[V (H_{2} O)_{6}]^{2 +}$

$[C r (H_{2} O)_{6}]^{2 +}$

$[V (H_{2} O)_{6}]^{2 +}$ has $V^{2 +}$ metal having $3 d^{3}$ electronic configuration due to which it has maximum negative value of $CFSE$ out of all. Hence, has maximum enthalpy of hydration.

Q. Among the following complexes, the one that has highest enthalpy of hydration is

[Co(H2​O)6​]2+

[Mn(H2​O)6​]2+

[V(H2​O)6​]2+

[Cr(H2​O)6​]2+

[V(H2​O)6​]2+ has V2+ metal having 3d3 electronic configuration due to which it has maximum negative value of CFSE out of all. Hence, has maximum enthalpy of hydration.

$[C o (H_{2} O)_{6}]^{2 +}$

$[M n (H_{2} O)_{6}]^{2 +}$

$[V (H_{2} O)_{6}]^{2 +}$

$[C r (H_{2} O)_{6}]^{2 +}$

$[V (H_{2} O)_{6}]^{2 +}$ has $V^{2 +}$ metal having $3 d^{3}$ electronic configuration due to which it has maximum negative value of $CFSE$ out of all. Hence, has maximum enthalpy of hydration.