Exp. 5 - Hydrogen Sulfide group Flashcards
1
Q
Bi2S3
A
brownish black ppt
2
Q
CuS
A
Black ppt
3
Q
CdS
A
yellow ppt
4
Q
HgS
A
black ppt
5
Q
Sb2S3
A
orange ppt
6
Q
As2S3
A
yellow ppt
7
Q
SnS
A
light brown ppt
8
Q
SnS2
A
yellow ppt
9
Q
PbCrO4
A
yellow ppt
10
Q
Na2PbO2 or Pb(OH)4 +2
A
yellow solution
11
Q
Na2SnO2 with Bi+3 = ?
A
metallic Bi
black ppt
12
Q
Cu2Fe(CN)6
A
reddish brown ppt
13
Q
Cu(OH)N3
A
green basic salt
14
Q
Cd2Fe(CN)4
A
white ppt.
15
Q
HgI2
A
scarlet red ppt.
16
Q
K2HgI4 or HgI4 -2 & metallic Hg
A
soluble colorless solution
17
Q
metallic Sb
A
black ppt
18
Q
AsH3 to metallic Ag
A
colorless gas with black ppt
19
Q
Hg2Cl2 to metallic Hg
A
white to gray ppt
20
Q
Sn+2 with Mg metal
A
Sn+2
colorless solution
21
Q
Cu(NH3)4 2+
A
blue
22
Q
As2S3
A
yellow
23
Q
Bi(OH)3
A
white
24
Q
SnS2
A
yellow
25
CuS
black
26
PbS
black
27
PbSO4
white
28
Cd(NH3)4 2+
green
29
Bi2S3
brownish black
30
metallic Sb
black
31
metallic Bi
silvery white
32
separate CdS from HgS
Na2S
33
separated Hg+ from Bi 3+
HCl
34
separate As2S3 from SnS2
NO2S
35
Separate CuS from CdS
Na2S
36
Separate Bi 3+ from Cd 2+
HgS
37
soluble in H2S
Cu subgroup
38
insoluble in H2S
Sn subgroup
39
Pb 2+ in excess NaOH
soluble = yellow sol'n
40
Hg 2+ in excess KI
soluble= colorless solution
41
PbS
black ppt
