Assertion: The [ Ni ( en )3 Cl 2] Cl 2 (en = ethylene diamine) has lower stability than [ Ni ( NH 3)6 Cl 2]. Reason: In [ Ni ( en )3 Cl 2] the geometry of Ni is trigonal bipyramidal.

Question

Assertion: The [ Ni ( en )3 Cl 2] Cl 2 (en = ethylene diamine) has lower stability than [ Ni ( NH 3)6 Cl 2]. Reason: In [ Ni ( en )3 Cl 2] the geometry of Ni is trigonal bipyramidal. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

In [ Ni ( en )3] Cl 2, ethylene diamine ( en ) is a bidentate ligand, hence it forms chelating ring with Ni 2+ ion. Chelates are comparatively more stable. Hence, [ Ni ( en )3] Cl 2 is more stable than [ Ni ( NH 3)6] Cl 2.

Q. Assertion: The $[N i (e n)_{3} C l_{2}] C l_{2}$ (en = ethylene diamine) has lower stability than $[N i (N H_{3})_{6} C l_{2}]$ .
Reason : In $[N i (e n)_{3} C l_{2}]$ the geometry of $N i$ is trigonal bipyramidal.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

In $[N i (e n)_{3}] C l_{2}$ , ethylene diamine $(e n)$ is a bidentate ligand, hence it forms chelating ring with $N i^{2 +}$ ion. Chelates are comparatively more stable. Hence, $[N i (e n)_{3}] C l_{2}$ is more stable than $[N i (N H_{3})_{6}] C l_{2}$ .

Q. Assertion: The [Ni(en)3​Cl2​]Cl2​ (en = ethylene diamine) has lower stability than [Ni(NH3​)6​Cl2​]. Reason : In [Ni(en)3​Cl2​] the geometry of Ni is trigonal bipyramidal.