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  COLOURS OF DIFFERENT COMPOUNDS (AIEEE most)   Awaiting Review for Nickels
Tagged with:       [Post New]posted on 17 Jul 2008 13:56:38 IST    

COLOURS OF DIFFERENT  COMPOUNDS :::::

 

1)      CaCO3- white

2)    BaCO3- white

3)    PbCO3- white

4)    AgNO3- white

5)    Ag metal- black

6)    Ag2O- brown

7)    Acidic K2Cr2O7- orange

8)    Cr2(SO4)3- green

9)    All +3 state Cr salts are green in color

10) Acidic KMnO4- pink

11)  I2 solution- brown

12) I2 in presence of starch gives blue color

13) CaSO3 ? white turbidity

14) Colloidal sulphur- yellowish white turbidity

15) PbS- black

16) CdS- yellow

17) Na4[Fe(CN)5OS]- purple.

18) Ag2S- black

19)  Sulphide + dil HCl gives H2S gas

20)                       HNO2- pale blue

21) NO2- reddish brown gas

22)                       Brown ring complex: Fe[NO]SO4 (or) [Fe(H2O)5NO]SO4

23)                       I2 solid- brown ppt

24)                       I2 gas- violet vapours.

25)                       BaSO4- white

26)                       NH4Cl- dense white fumes

27)                        The white ppt AgCl when exposed to light turns into bluish grey silver metal.

28)                       AgI- yellow

29)                       PbCl2- white

30)                       CrO2Cl2- red gas

31)           H2CrO4- yellow

32)                       Na2CrO4- yellow

33)                        All (CrO4)2- salts are yellow.

34)                       H2Cr2O7- orange

35)                       CrO5- blue

36)                       (Cr2O7)2- => orange

37)                       Br2- orange red gas

38)                       [Ag(NH3)2]Br- pale yellow or yellowish white

39)                       PbBr2- yellowish white

40)                       PbI2- yellow

41)           Cu2I2- white

42)                       HgI2 ? red

43)                       PbCrO4- yellow ppt

44)                       Ag2CrO4- brick red

45)                       Ag2S- black

46)                       AgOH- white

47)                       Ag2S2O3- white

48)                       Ag2S- black

49)                       Hg2Cl2- calomel white

50)                       Hg- grey

About the Author:
a4asd (329)

Blazing goIITian

Olaaa!! Perrrfect answer. 57  bad job dude!! I dont approve of this answer! 1  [81 rates]

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 this article: 17 points  (with Olaaa!! Perrrfect answer.   in 4 votes )   [?]
 
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a4asd
a4asd is offline comment by a4asd    (posted on 17 Jul 2008 14:12:31 IST)
comment plzzz.
GoNik
GoNik is offline comment by GoNik    (posted on 17 Jul 2008 14:27:07 IST)
nice
joy_iit is offline comment by joy_iit    (posted on 17 Jul 2008 15:02:20 IST)
very good
pantpranav
pantpranav is offline comment by pantpranav    (posted on 17 Jul 2008 17:40:07 IST)
Good job!
a4asd
a4asd is offline comment by a4asd    (posted on 17 Jul 2008 18:35:35 IST)
Thanx all of u
astatine19
astatine19 is offline comment by astatine19    (posted on 17 Jul 2008 19:25:35 IST)
Good compendium.. Do keep updating this list.
a4asd
a4asd is offline comment by a4asd    (posted on 18 Jul 2008 06:31:10 IST)
thanx
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