Name: Class 10 STICK TO YOUR WALL IN STUDY AREA
___________________________________________________________________________________________________________________________________
___________________________________________________________________________________________________________________________________
The Hg Classes (8th to 12th) By: Hershit Goyal (B.Tech. IIT BHU), 134-SF, Woodstock Floors, Nirvana Country, Sector 50, GURUGRAM
http://fb.me/hgoyalclasses hgoyalclasses@gmail.com https://www.instagram.com/the_hg_classes +91 9599697178.
Hg
Important Salts, Gases, Ions and special characteristics:
CHEMICAL
FORMULA
CHEMICAL NAME
COLOR/PHYSICAL
APPEARANCE
SPECIAL CHARCTERSTICS
SALTS:
PbCl2
Lead Chloride
White chalky precipitate
insoluble in cold water,
but soluble in hot
AgCl
Silver Chloride
White curdy precipitate
insoluble in hot and cold water
ZnO and PbO
Zinc Oxide, Lead Oxide
White, yellow when hot
CaCO3
Calcium Carbonate
White milky precipitate
BaSO4
Barium Sulphate
White precipitate
Insoluble in dil. mineral acids
PbSO4
Lead Sulphate
White precipitate
Zn(NO3)2
Zinc Nitrate
White
CaSO4.1/2H2O
Calcium Sulphate
White
Plaster of paris
CuSO4
Copper Sulphate (anhydrous)
White (amorphous)
K, Na, Ca,
Mg, Zn, NH4 salts
Sodium, Potassium, Calcium,
Magnesium, Zinc and
Ammonium salts
White
Pb, Hg, Ag
All other lead mercury and
silver salts
White
CuSO4.5H2O
Copper Sulphate (hydrated)
Blue (crystalline)
Cu(NO3)2
Copper Nitrate
Bluish Green
Cu(OH)2
Copper Hydroxide
Blue
CuCO3
Copper Carbonate
Green
Corrosion example (Copper
becoming green on exposure to
moist air).
FeSO4.7H2O
Ferrous Sulphate
Dirty Green
CuCl2.2H2O
Copper Chloride dihydrate
Bluish Green
CuO
Copper Oxide
Black
MnO2
Manganese Oxide
Black
Fe3O4
Ferrous Ferric Oxide
Black
FeS, Fe2S3
Iron(II), Iron (III) Sulphide
Black
CuS
Copper Sulphide
Black
PbS
Lead Sulphide
Black
Ag2S
Silver Sulphide
Black
Corrosion example
Ag2O
Silver Oxide
Brown
Deliquescent salt (salt absorbing
moisture from air)
KMnO4
Potassium Permanganate
Purple/Violet
Fe(SO4)3
Ferric Sulphate
Yellow
PbO
Lead (II) Oxide
Yellow
CuCl2
Copper Chloride (anhydrous)
Yellow
AgBr
Silver Bromide
Yellow
AgI
Silver Iodide
Yellow
PbI
Lead Iodide
Yellow Precipitate
K2Cr2O7
Potassium Dichromate
Orange
FeCl3
Ferric Chloride
Reddish Brown
Fe2O3
Ferric Oxide
Reddish Brown
Corrosion example (rusting of
iron)
Cu2O
Copper (I) Oxide
Red
Pb3O4
Lead Oxide (Red Lead)
Red
Name: Class 10 STICK TO YOUR WALL IN STUDY AREA
___________________________________________________________________________________________________________________________________
___________________________________________________________________________________________________________________________________
The Hg Classes (8th to 12th) By: Hershit Goyal (B.Tech. IIT BHU), 134-SF, Woodstock Floors, Nirvana Country, Sector 50, GURUGRAM
http://fb.me/hgoyalclasses hgoyalclasses@gmail.com https://www.instagram.com/the_hg_classes +91 9599697178.
Hg
GASES:
I2
Iodine
Violet
Br2
Bromine
Reddish/Brownish
NO2
Nitrogen Dioxide
Reddish Brown
Cl2
Chlorine
Greenish Yellow
Bleaching properties
H2
Hydrogen
Colorless, but 9 colors
depending upon source
Burns with a pop sound
H2S
Hydrogen Sulphide
Colorless
Smell of rotten eggs
N2
Nitrogen
Colorless
Due to triple bond, nearly inert
gas
SO2
Sulphur Dioxide
Colorless
Smell of burning sulphur
NH3
Ammonia
Colorless
Green flame on burning in
oxygen
CO2
Carbondioxide
Colorless
Extinguishes burning
matchstick; Turns lime water
milky
NH3, HCl, SO2, CO2
Colorless
Pungent odour
HNO3
Colorless (pure),
Yellow (in sulnlight)
IONS:
Cu2+
Cupric
Blue
Cr3+
Chromium
Dark Green
Ni2+
Nickel
Green
Fe2+
Ferrous
Light Green
Fe3+
Ferric
Brown
Mn2+
Manganese
Light pink
Co2+
Cobalt
Pinkish Violet
MnO4-
Permanganate
Pink
CrO42-
Chromate
Yellow
Cr2O72-
Dichromate
Orangish Yellow
ELEMENTS:
Ag
Silver
Grey
Cu
Copper
Reddish Brown
Fe
Iron
Silvery Grey (Pure)
