Common Names & Colours

Question 1

Green vitriol

Answer 1

FeSO4.7H2O

Question 2

Colour

CdS

Answer 2

Yellow ppt

Question 3

White lead

Answer 3

Pb(OH)2. 2PbCO3

Question 4

Colour

HgO, Hg

Answer 4

Cool HgO = Yellow
Hot HgO = Red
Hg = Black

Question 5

Colour

KMnO4

Answer 5

dark purple

Question 6

Gossage Process

Answer 6

Preparation of NaOH
Ca(OH)2 + Na2CO3 -> NaOH + CaCO3

Question 7

Colour

MnO2

Answer 7

Brown

Question 8

Plaster of Paris

Answer 8

CaSO4. 1/2 H2O

Question 9

Colour

Fe2O3

Answer 9

Red

Question 10

Colour

K3[Fe(CN)6]

Answer 10

Prussian Red

Question 11

Blue vitriol

Answer 11

CuSO4.5H2O

Question 12

Colour

Massicote

Answer 12

Cold PbO (Yellow)

Question 13

Formula & Function

Lithopone

Answer 13

BaSO4 + ZnS

Dye

Question 14

Zeise’s salt

Answer 14

K[Pt(Cl)3 C2H4]

Question 15

Colour

CrO5

Answer 15

Blue

Question 16

Colour

CuO

Answer 16

Black

Question 17

Colour

Cr2O3

Answer 17

Green

Amphoteric

Question 18

Colour

Fe3[Fe(CN)6]2

Answer 18

Turnbull’s blue

Question 19

Colour

Fe4[Fe(CN)6]3

Answer 19

Persian blue

Question 20

Organometallic compounds

Carboxypeptidase-A is an ____ and contains ___

Answer 20

enzyme, zinc

Question 21

Ferrocene

Answer 21

Fe(C5H5)2

Question 22

White vitriol

Answer 22

ZnSO4.7H2O

Question 23

Organometallic compounds

Chlorophyll contains ___

Answer 23

Magnesium

Question 24

Organometallic compounds

Vitamin B12 is called ____ and contains ___

Answer 24

Cyanocobalamin, Cobalt

Question 25

Gypsum

Answer 25

CaSO4.2H2O

Question 26

# Organometallic compounds RMgX

Answer 26

Grignard Reagent

Question 27

Dolomite

Answer 27

CaCO3.MgCO3

Question 28

Dead burnt plast

Answer 28

CaSO4

Question 29

Alum

Answer 29

K2SO4.Al2(SO4)3.24H20

Question 30

# Colour K2Cr2O7

Answer 30

orange

Question 31

# Colour K2CrO4

Answer 31

yellow

Question 32

Switzer reagent

Answer 32

[Cu(NH3)4]SO4

Question 33

Sodium nitroprusside

Answer 33

Na2[Fe(CN)5 NO]

Question 34

Nessler's reagent

Answer 34

K2[HgI4]

Question 35

Vaska's complex

Answer 35

[IrCl (CO) (P(Ph)3)2]

Question 36

Prussiate of Potash

Answer 36

K4[Fe(CN)6]

Question 37

# Colour ZnO

Answer 37

Cold = White Hot = Yellow

Question 38

# Colour K2O

Answer 38

Cold K2O = White Hot K2O = Yellow

Question 39

# Organometallic compounds R2CuLi

Answer 39

Gilmann Reagent

Question 40

Wilkinson's catalyst

Answer 40

[RhCl (P(Ph)3)3]

Question 41

# Colour AgI

Answer 41

Yellow ppt

Question 42

Cisplatin

Answer 42

[Pt(NH3)2 Cl2]

Question 43

Magnus green salt

Answer 43

[Pt(NH3)4] [PtCl4]

Question 44

# Colour Fe[Fe(CN)6]

Answer 44

Brown

Question 45

HgI2

Answer 45

Cool = Red On heating = Yellow On cooling again = Stays yellow On rubbing = goes back to red

Question 46

# Colour Ag2O

Answer 46

Brown

Question 47

# Colour K2MnO4

Answer 47

green

Question 48

# Colour Fe2[Fe(CN)6]

Answer 48

White

Question 49

Epsom

Answer 49

MgSO4.7H2O

Question 50

Fisher salt

Answer 50

K3[Co(NO2)6]

Question 51

# Organometallic compounds LiCH3

Answer 51

LIthium methanide Methyllithium

Question 52

# Colour Pb3O4

Answer 52

Red

Question 53

# Colour Litharge

Answer 53

Hot PbO (Red)

Question 54

Carnalite

Answer 54

KCl + MgCl2

Question 55

# Name of Hg2Cl2

Answer 55

Calomel

Question 56

Collman's reagent

Answer 56

Na2[Fe(CO)4]

Question 57

# Organometallic compounds R2 Zn

Answer 57

Frankland Reagent

Question 58

Mohr Salt

Answer 58

(NH4)2SO4.FeSO4.6H20

Question 59

# Colour AgBr

Answer 59

Yellow ppt

Question 60

Glauber's salt

Answer 60

Na2SO4.10H2O

Question 61

Brown ring complex

Answer 61

[Fe (H2O)5 NO]SO4

Question 62

# HgCl2 is a _ HgCl2

Answer 62

is a corrsive sublimate

Question 63

# What is Sesqui oxide

Answer 63

O/central atom ratio = 1.5 example: B2O3, N2O3, Al2O3, Fe2O3