Exp. 5 - Hydrogen Sulfide group Flashcards by mi rodriguez | Brainscape

Q

Bi2S3

A

brownish black ppt

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Q

CuS

A

Black ppt

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Q

CdS

A

yellow ppt

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Q

HgS

A

black ppt

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Q

Sb2S3

A

orange ppt

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Q

As2S3

A

yellow ppt

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Q

SnS

A

light brown ppt

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Q

SnS2

A

yellow ppt

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Q

PbCrO4

A

yellow ppt

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Q

Na2PbO2 or Pb(OH)4 +2

A

yellow solution

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Q

Na2SnO2 with Bi+3 = ?

A

metallic Bi

black ppt

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Q

Cu2Fe(CN)6

A

reddish brown ppt

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Q

Cu(OH)N3

A

green basic salt

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Q

Cd2Fe(CN)4

A

white ppt.

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Q

HgI2

A

scarlet red ppt.

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Q

K2HgI4 or HgI4 -2 & metallic Hg

A

soluble colorless solution

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Q

metallic Sb

A

black ppt

Q

AsH3 to metallic Ag

A

colorless gas with black ppt

Q

Hg2Cl2 to metallic Hg

A

white to gray ppt

Q

Sn+2 with Mg metal

A

Sn+2

colorless solution

Q

Cu(NH3)4 2+

A

blue

Q

As2S3

A

yellow

Q

Bi(OH)3

A

white

Q

SnS2

A

yellow

Q

CuS

A

black

Q

PbS

A

black

Q

PbSO4

A

white

Q

Cd(NH3)4 2+

A

green

Q

Bi2S3

A

brownish black

Q

metallic Sb

A

black

Q

metallic Bi

A

silvery white

Q

separate CdS from HgS

A

Na2S

Q

separated Hg+ from Bi 3+

A

HCl

Q

separate As2S3 from SnS2

A

NO2S

Q

Separate CuS from CdS

A

Na2S

Q

Separate Bi 3+ from Cd 2+

A

HgS

Q

soluble in H2S

A

Cu subgroup

Q

insoluble in H2S

A

Sn subgroup

Q

Pb 2+ in excess NaOH

A

soluble = yellow sol’n

Q

Hg 2+ in excess KI

A

soluble= colorless solution

Q

PbS

A

black ppt