Solvay process is used for the manufacture of
Caustic soda
Soda ash
Caustic potash
Soda lime
Correct Answer :
B. Soda ash
Related Questions
Oils and fats are converted to soap in a process called
Hydrogenation
Esterification
Saponification
None of these
Analgesic drugs are
Pain relievers
Antibiotics
Used in the treatment of T.B.
Used in the treatment of typhoid
Cumene is the starting material for the production of
Benzoic acid
Phenol and acetone
Isoprene
Styrene
Saponification value/number of an oil or fat is a measure of its
Fatty acid content
Degree of unsaturation of the fatty acids present in it
Average molecular weight
Insoluble fatty acid content
Dechlorination of treated water is necessary to
Remove residual turbidity
Reduce the bacterial load on filter
Control taste and odour
Remove chlorinous taste
Polymethyl methacrylate (PMMA) is known as
Bakelite
Teflon
Perspex
Nylon-6
Pick out the wrong statement. Iodine value of an oil or fat is
The number of grams of iodine taken up by 100 gm of oil or fat
A measure of its unsaturation
Helpful in findings its adulteration & its suitability for making soap
Independent of the type of oil, whether it is drying or non-drying
In sulphate pulp manufacture, the pressure and temperature in the digestor is
10 atm., 800 °C
10 atm., 170-180°C
1 atm., 170 - 180°C
1 atm., 800°C
Hydrazine is used in water treatment for the removal of
Colloidal impurities
Dissolved oxygen
Turbidity
Chlorinous taste
Permanent hardness of water can be removed by
Addition of soda ash to it
Treating it with zeolites
Passing it through sodium hexametaphosphate
All (A), (B), and (C)
Separation of fresh water from sea water can be done by the __________ operation.
Osmosis
Reverse osmosis
Absorption
Adsorption
Polycaprolactam is commercially known as
Nylon-6
Nylon-66
Dacron
Rayon
The noble gas which occurs most abundantly in the atmosphere is
Helium
Neon
Krypton
Argon
Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.
10
50
80
95
Main use of hydrazine is
As a rocket fuel
In water treatment
As a disinfectant
As fire retardant
Anion exchanger is regenerated usually with
NaOH
H2SO4
Hydrazine
Alum solution
Solvay process is used for the manufacture of
Caustic soda
Soda ash
Caustic potash
Soda lime
Chloramines are used in water treatment for
Disinfection and control of taste & odour
Corrosion control
Removing turbidity
Control of bacteria
Shrinkage volume in cement setting does not depend upon the
Sand to cement ratio
Water to cement ratio
Ambient temperature fluctuation
Drying period
Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an
Explosive
Soap
Detergent
Analgesic drug
All enzymes are made of
Fats
Carbohydrates
Proteins
Amino acids
Free alkali in a toilet soap is __________ that in a laundry shop.
Less than
More than
Same
None of these
At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.
Independent of
Directly proportional to
Inversely proportional to
Proportional to the square of
Bleaching of paper pulp is done with
Activated clay
Bromine
Chlorine or chlorine dioxide
Magnesium sulphite
Sodium carbonate (soda ash) is not used in the manufacture of
Fire extinguishers
Sugar
Baking powder
Detergents
Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in
Pyrolysis of oil
Sintering of porous catalyst
Hydrogen embrittlement
All (A), (B) and (C)
Which of the following is not produced commercially from sea water?
Magnesium & potassium compounds
Common salt
Bromine
Iodine
Which of the following is not present in bagasse fibre?
Cellulose
Lignin
Pentogens
None of these
Rancidity of the fatty oil can be reduced by its
Decoloration
Hydrogenation
Oxidation
Purification
Widely used method for the conditioning of boiler feed water is the
Cold lime process
Coagulation
Hot-lime soda process
Sequestration