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2.5 - Transition Metals 1

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

Colour of [CuCl₄]²⁻?

Back (Answer)

Yellow

#2
Front (Question)

Colour of [Co(NH₃)₆]²⁺?

Back (Answer)

Yellow

#3
Front (Question)

Colour change: Cobalt(II) salt & excess ammonia?

Back (Answer)

Pink |> Yellow

#4
Front (Question)

Colour change: [Co(H₂O)₆]²⁺ |> [Co(NH₃)₆]²⁺

Back (Answer)

Pink |> Yellow

#5
Front (Question)

Equation for ΔE?

Back (Answer)

ΔE = hν h = 6.63x10⁻³⁴ J ν = frequency of light absorbed ν = c/λ =3x10⁸/wavelength

#6
Front (Question)

Colour of [Co(H₂O)₆]²⁺?

Back (Answer)

Pink

#7
Front (Question)

What 3 factors affect the Colour of transition metal complexes?

Back (Answer)

Change in Co-ordination n⁰. Change in Ligand Change in Oxidation State

#8
Front (Question)

Colour of [CoCl₄]²⁻?

Back (Answer)

Blue

#9
Front (Question)

Colour of [Cu(H₂O)₆]²⁺?

Back (Answer)

Pale Blue

#10
Front (Question)

Colour change: aqueous Cobalt(II) salt & conc. HCl?

Back (Answer)

Pink |> Blue

#11
Front (Question)

Colour change: [Co(H₂O)₆]²⁺ |> [CoCl₄]²⁻?

Back (Answer)

Pink |> Blue

#12
Front (Question)

Co-ordination n⁰. of Iron(II) in Haem?

Back (Answer)

4

#13
Front (Question)

Define: Ligand

Back (Answer)

a Molecule or ion that forms a Co-ordinate bond with a transition metal by Donating a pair of electrons

#14
Front (Question)

Colour change: aqueous Copper(II) salt & conc. HCl?

Back (Answer)

Pale Blue |> Yellow

#15
Front (Question)

Colour change: [Cu(H₂O)₆]²⁺ |> [CuCl₄]²⁻?

Back (Answer)

Pale Blue |> Yellow

#16
Front (Question)

Complexes w/ co-ordination n⁰. of 4 that have ____ as central metal ion are generally ____?

Back (Answer)

Ni, Pt, or Pd Square Planar

#17
Front (Question)

Examples of Bidentate Ligands?

Back (Answer)

1,2-diaminoethane Ethanedioate ion (C₂O₄²⁻)

#18
Front (Question)

Octahedral complexes w/ ____ can form ____ stereoisomers?

Back (Answer)

Four of one Ligand & Two of another Cis-Trans

#19
Front (Question)

Colour of [Cu(H₂O)₂(NH₃)₄]²⁺?

Back (Answer)

Deep Blue

#20
Front (Question)

Colour change: aqueous Copper(II) salt & excess ammonia

Back (Answer)

Pale Blue |> Deep Blue

#21
Front (Question)

Colour change: [Cu(H₂O)₆]²⁺ |> [Cu(H₂O)₂(NH₃)₄]²⁺?

Back (Answer)

Pale Blue |> Deep Blue

#22
Front (Question)

Define: Optical Isomers

Back (Answer)

Non-superimposable mirror images

#23
Front (Question)

Octahedral complexes containing ____ can form ____ stereoisomers & ____?

Back (Answer)

Two bidentate & Two monodentate Ligands Cis-Trans Optical isomers of the Cis isomer

#24
Front (Question)

Colour of [Co(H₂O)₆]²⁺?

Back (Answer)

Pink