Transition metals (A-level only)

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Question 21
Easy

Which statement about the shapes and bonding of transition metal complex ions is not correct?

Bidentate coordination of oxalate to iron

The complex ion [Ag(NH3)2]+[Ag(NH_3)_2]^+[Ag(NH3​)2​]+ has a linear shape with a bond angle of 180∘180^\circ180∘.

The complex ion [Fe(C2O4)3]3−[Fe(C_2O_4)_3]^{3-}[Fe(C2​O4​)3​]3− is trigonal planar because it contains three ligands.

The complex ion [CuCl4]2−[CuCl_4]^{2-}[CuCl4​]2− has a tetrahedral shape with bond angles of approximately 109.5∘109.5^\circ109.5∘.

The complex ion [Pt(NH3)2Cl2][Pt(NH_3)_2Cl_2][Pt(NH3​)2​Cl2​] has a square planar shape with bond angles of 90∘90^\circ90∘.

Transition metals (A-level only) Questions

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