Which one of the following metal complexes is most stable?

Question

Which one of the following metal complexes is most stable? (A) [ Co (e n)( NH 3)4] Cl 2 (B) [ Co ( en )3] Cl 2 (C) [ Co ( en )2( NH 3)2] Cl 2 (D) [ Co ( NH 3)6] Cl 2

Tardigrade Admin · Accepted Answer

Complex [ Co (e n)3] Cl 2 is most stable complex among the given complex compounds because more number of chelate rings are present in this complex as compare to others. 1 [ Co ( en )( NH 3)4] Cl 2 1 chelate ring 2 [ Co (e n)3] Cl 2 3 chelate ring 3 [ Co ( en )2( NH 3)2] Cl 2 2 chelate ring 4 [ Co ( NH 3)6] Cl 2 0 chelate ring

Q. Which one of the following metal complexes is most stable?

$[C o (e n) (N H_{3})_{4}] C l_{2}$

$[C o (e n)_{3}] C l_{2}$

$[C o (e n)_{2} (N H_{3})_{2}] C l_{2}$

$[C o (N H_{3})_{6}] C l_{2}$

1	$[C o (e n) (N H_{3})_{4}] C l_{2}$	1 chelate ring
2	$[C o (e n)_{3}] C l_{2}$	3 chelate ring
3	$[C o (e n)_{2} (N H_{3})_{2}] C l_{2}$	2 chelate ring
4	$[C o (N H_{3})_{6}] C l_{2}$	0 chelate ring

Q. Which one of the following metal complexes is most stable?

[Co(en)(NH3​)4​]Cl2​

[Co(en)3​]Cl2​

[Co(en)2​(NH3​)2​]Cl2​

[Co(NH3​)6​]Cl2​

$[C o (e n) (N H_{3})_{4}] C l_{2}$

$[C o (e n)_{3}] C l_{2}$

$[C o (e n)_{2} (N H_{3})_{2}] C l_{2}$

$[C o (N H_{3})_{6}] C l_{2}$