Which of the following is used as a binding material in soap to improve soap texture?
Rosin
Borax
Benzyl acetate
Sodium carbonate
Correct Answer :
B. Borax
Related Questions
Which of the following has sodium bicarbonate as its main constituent?
Baking soda
Baking powder
Washing soda
None of these
Phenolic antiseptics are added in the __________ soap.
Shaving
Medicated
Metallic
Transparent
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)
Bio-degradable detergents
Can be readily oxidised
Pose problem in sewerage plant
Have an isoparaffinic structure
Should not be used as it spoils the cloth
Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils
Cause cholesterol build up and blood clotting
Are prone to rancid oxidation
Always contain some amount of nickel (as their complete removal is very difficult)
Have affinity to retain harmful sulphur compounds
Chemical name of soda ash is
Sodium bicarbonate
Sodium thiosulphate
Potassium carbonate
None of these
All enzymes are made of
Fats
Carbohydrates
Proteins
Amino acids
Catalytic oxidation-dehydrogenation of methyl alcohol produces
Formaldehyde
Phenol
Acetone
Maleic anhydride
Dacron (or Terylene) fibres as compared to nylon fibres have
Better heat & acid resistant properties
Poorer resistance to alkalis
Poorer dyeability
All (A), (B) and (C)
Yeast is used in the manufacture of
Penicillin
Antibiotics
Wine
Pasteurised milk
Haemoglobin is a/an
Amino acid
Biological catalyst
Protein
Enzyme
P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as
Bakelite
Neoprene
Teflon
Nylon-66
Use of hydrated lime in water treatment
Before filtration, reduces the bacterial load on filters
After filtration, combats the corrosiveness of water due to the presence of O2 & CO2
Is to adjust the pH value
All (A), (B) and (C)
Linde process of gas liquefaction employs
Exchange of heat with colder stream
Adiabatic expansion through a throttle valve (Joule-Thomson expansion)
Adiabatic expansion against a piston or in a turbine
Merely compressing the gas beyond its critical pressure
Teflon is
Phenol formaldehyde
An inorganic polymer
Poly tetra-fluoro-ethylene (P.T.F.E.)
A monomer
White phosphorous is stored under water, because
It does not react with water
It is poisonous
Its kindling temperature in dry air is very low
It is unstable
Frasch process is for
Making oxygen
Producing helium
Mining sulphur
Making nitrogen
Which of the following paper does not require a filler during manufacture?
Bond paper
Writing paper
Blotting paper
Coloured paper
Systemic insecticides
Are absorbed throughout the plant
Kill insects following external bodily contact
Are stomach poisons
Emit poisonous vapour
Styrene butadiene rubber (SBR) is
A natural rubber
A synthetic polymer
A synthetic monomer
Another name of silicone rubber
In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the
Diamine and the ring
Dibasic acid and the ring
Diamine and the dibasic acid
None of these
Thermosetting plastic materials
Can be repeatedly melted
Is useful for melt casting
Cannot be melted after forming
Is useful for spinning
Function of thinner in a paint is to
Accelerate the oxidation of oil
Prevent gelling of the paint
Suspend pigments & dissolve film forming materials
Form a protective film
Which of the following is not produced commercially from sea water?
Magnesium & potassium compounds
Common salt
Bromine
Iodine
The manufacture of Kraft pulp is done by a/an __________ process.
Alkaline
Acidic
Neutral
None of these
Highly porous refractory bricks are
Less susceptible to chemical attack by molten fluxes and gases etc
Very strong
Having very high thermal conductivity
None of these
__________ is an ore of lead.
Quartz
Galena
Siderite
Chalcopyrite
__________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.
Pyrex
Soda lime
Lead
High silica
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)
Phenol formaldehyde is produced by condensation polymerisation. It is also known as
Teflon
Bakelite
Polyester
Nylon-66