Transition Elements Flashcards by Khadija Fahim | Brainscape

Q

[Cu(H2O)6]²⁺

A

blue solution

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Q

[Mn(H2O)6]²⁺

A

pale pink solution

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Q

[Fe(H2O)6]²⁺

A

pale green solution

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Q

[Fe(H2O)6]³⁺

A

pale yellow solution

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Q

[Cr(H2O)6]³⁺

A

violet solution

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Q

[Cr(H2O)5(SO4)]⁺

A

green solution

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Q

Cu(OH)2

A

blue ppt

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Q

Mn(OH)2

A

light brown ppt

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Q

Fe(OH)2

A

green ppt

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Q

Fe(OH)3

A

orange brown ppt

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Q

Cr(OH)3

A

grey green ppt

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Q

Mn(OH)2 oxidised to Mn(OH)3

A

darkens to brown ppt

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Q

Fe(OH)2 oxidised to Fe(OH)3

A

darkens to orange brown ppt

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Q

Cr³⁺ with excess OH⁻ = [Cr(OH)6]³⁻

A

dark green solution

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Q

[Cu(NH3)4(H2O)2]²⁺ (Cu in excess NH3)

A

dark blue solution

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Q

[Cr(NH3)6]³⁺ (Cr in excess NH3)

A

purple solution

Q

Cu²⁺ + conc HCl = [CuCl4]²⁻

A

yellow solution

Q

MnO4⁻

A

deep purple solution

Q

Cr2O7²⁻

A

orange solution

Q

CrO4²⁻

A

yellow solution