Question

Which has maximum stability ?
(A)AsCl3
(B)SbCl3
(C)BiCl3
(D)Equal.
I want full solution. Please.​

Answer 1

Answer:

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Explanation:

Option C is correct because the atomic no.of Bi is high than that of As and Sb so atomic no.increses then their metallic strength is also increases hence it acquires maximum stability.

Answer 2

Answer:

Among all given compounds, BiCl₃ has maximum stability.

Therefore the option (C) is correct.

Explanation:

• The inertness of  electrons s-subshell towards the bond formation is known as inert pair effect. The electrons of valence shell present  in s-orbital do not participate in bonding.
• As we move down the group the nuclear charge increases due to the poor shielding effect of f-orbitals.
• Therefore down the group, N oxidation state becomes more stable than (N+1) oxidation state.
• In group 15 , elements show both +5 and +3 oxidation state.
• But due to inert pair effect +3 oxidation state becomes more stable gown the group.

       Stability: Bi³⁺ > Sb³⁺ > As³⁺

       Stability: BiCl₃ > SbCl₃ > AsCl₃