Identify the correct trend given below: (Atomic No. = Ti: 22, Cr: 24 and Mo: 42)

Question

Identify the correct trend given below: (Atomic No. = Ti: 22, Cr: 24 and Mo: 42) (A) Δ of ([C r (H2 O)6])2 +>([M o (H2 O)6])2 + and Δ of ([T i (H2 O)6])3 +>([T i (H2 O)6])2 + (B) Δ of ([C r (H2 O)6])2 +>([M o (H2 O)6])2 + and Δ of ([T i (H2 O)6])3 + < ([T i (H2 O)6])2 + (C) Δ of ([C r (H2 O)6])2 + < ([M o (H2 O)6])2 + and Δ of ([T i (H2 O)6])3 +>([T i (H2 O)6])2 + (D) Δ of ([C r (H2 O)6])2 + < ([M o (H2 O)6])2 + and Δ of ([T i (H2 O)6])3 + < ([T i (H2 O)6])2 +

Tardigrade Admin · Accepted Answer

As the oxidation state of metal increases the CFSE value increases hence

Δ o f ([T i (H_{2} O)_{6}])^{3 +} > ([T i (H_{2} O)_{6}])^{2 +}

Δ

increase from 3d to 4d Series. So,

Δ \propto

CFSE (Crystal field stabilisation energy)

(Δ o f [C r (H_{2} O)_{6}])^{2 +} < Δ o f ([M o (H_{2} O)_{6}])^{2 +}

Because here

Δ

depends on Z_eff & Z_eff of 4d series is more than 3d series

Q. Identify the correct trend given below:
(Atomic No. = Ti : 22, Cr : 24 and Mo : 42)

$Δ o f ([C r (H_{2} O)_{6}])^{2 +} > ([M o (H_{2} O)_{6}])^{2 +}$ and $Δ o f ([T i (H_{2} O)_{6}])^{3 +} > ([T i (H_{2} O)_{6}])^{2 +}$

$Δ o f ([C r (H_{2} O)_{6}])^{2 +} > ([M o (H_{2} O)_{6}])^{2 +}$ and $Δ o f ([T i (H_{2} O)_{6}])^{3 +} < ([T i (H_{2} O)_{6}])^{2 +}$

$Δ o f ([C r (H_{2} O)_{6}])^{2 +} < ([M o (H_{2} O)_{6}])^{2 +}$ and $Δ o f ([T i (H_{2} O)_{6}])^{3 +} > ([T i (H_{2} O)_{6}])^{2 +}$

$Δ o f ([C r (H_{2} O)_{6}])^{2 +} < ([M o (H_{2} O)_{6}])^{2 +}$ and $Δ o f ([T i (H_{2} O)_{6}])^{3 +} < ([T i (H_{2} O)_{6}])^{2 +}$

Q. Identify the correct trend given below: (Atomic No. = Ti : 22, Cr : 24 and Mo : 42)

Δof([Cr(H2​O)6​])2+>([Mo(H2​O)6​])2+ and Δof([Ti(H2​O)6​])3+>([Ti(H2​O)6​])2+

Δof([Cr(H2​O)6​])2+>([Mo(H2​O)6​])2+ and Δof([Ti(H2​O)6​])3+<([Ti(H2​O)6​])2+

Δof([Cr(H2​O)6​])2+<([Mo(H2​O)6​])2+ and Δof([Ti(H2​O)6​])3+>([Ti(H2​O)6​])2+

Δof([Cr(H2​O)6​])2+<([Mo(H2​O)6​])2+ and Δof([Ti(H2​O)6​])3+<([Ti(H2​O)6​])2+

Q. Identify the correct trend given below:
(Atomic No. = Ti : 22, Cr : 24 and Mo : 42)

$Δ o f ([C r (H_{2} O)_{6}])^{2 +} > ([M o (H_{2} O)_{6}])^{2 +}$ and $Δ o f ([T i (H_{2} O)_{6}])^{3 +} > ([T i (H_{2} O)_{6}])^{2 +}$

$Δ o f ([C r (H_{2} O)_{6}])^{2 +} > ([M o (H_{2} O)_{6}])^{2 +}$ and $Δ o f ([T i (H_{2} O)_{6}])^{3 +} < ([T i (H_{2} O)_{6}])^{2 +}$

$Δ o f ([C r (H_{2} O)_{6}])^{2 +} < ([M o (H_{2} O)_{6}])^{2 +}$ and $Δ o f ([T i (H_{2} O)_{6}])^{3 +} > ([T i (H_{2} O)_{6}])^{2 +}$

$Δ o f ([C r (H_{2} O)_{6}])^{2 +} < ([M o (H_{2} O)_{6}])^{2 +}$ and $Δ o f ([T i (H_{2} O)_{6}])^{3 +} < ([T i (H_{2} O)_{6}])^{2 +}$