1 - 2
15 - 20
50 - 60
80 - 85
B. 15 - 20
Addition of soda ash to it
Treating it with zeolites
Passing it through sodium hexametaphosphate
All (A), (B), and (C)
-5 to 0
5 to 10
30 to 50
75 to 80
Producer gas
Water gas
Coke oven gas
All (A), (B) and (C)
Solar evaporation
Vacuum evaporation
Freeze drying
Electrolysis
Blue vitriol
Plaster of Paris
Gypsum
Zeolite
Rice
Molasses
Fruit of Mahua tree
Maize
Methyl amine
Naphthalene
Phenol
Xylene
Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate
Glass is decolorized during its manufacture by adding antimony oxide, manganese dioxide or arsenic oxide
Ordinary glass is represented chemically by Na2O . CaO . 6SiO2
Red color is imparted to glass by addition of arsenic oxide
Lead
Borosilicate
Soda lime
Alkali silicate
Iron-steam reaction
Electrolysis of water
Steam reforming of naphtha
Its cryogenic separation from coke oven gas
Polythene
Epoxy polymer
P.V.C.
Polystyrene
Cement
Lime from limestone
Slaked lime from quick lime
None of these
Cold rubber (SBR) is superior as compared to hot rubber (SBR)
Polymerisation temperature can modify the properties of SBR
Production of cold SBR employs lower pressure as compared to that of hot SBR
None of these
Styrene
Phenol
Benzene
Tri-nitro-toluene
Na2SO4
CaSO4. ½H2O
MgSO4
BaSO4
Lead oxide
Silica
Alumina
Soda
Molasses
Benzol
Methylated spirit
None of these
Chamber
Chance
Tromp
Solvay
Sand to cement ratio
Water to cement ratio
Ambient temperature fluctuation
Drying period
Adsorbs
Oxidises
Reduces
Converts
Exothermic
Endothermic
Not possible
None of these
Water hating
Soil loving
Water loving
None of these
H2SO3
H2SO4
H2S2O7
H2SO7
Alumina
Silica
20% oleum
Aluminium chloride
Aluminium
Silver
Copper
All (A), (B) and (C)
30
50
70
90
Wine, rum & Vodka are prepared by the formulation of fruit juice, sugar beet & rye respectively
Protein catalysts are called enzymes
The rate of chemical reaction is independent of the concentration of reactants at high concentration of enzymes
Total sugar content in molasses is about 10%
Low ash content
Low ignition temperature
High electrical resistivity
All (A), (B) and (C)
Which is an addition reaction
Which is a substitution reaction
In absolute dark
In presence of sunlight
Magnesium & potassium compounds
Common salt
Bromine
Iodine