SO2 is bubbled through hot sugar cane juice to
Act as an acidifying agent
Increase its concentration
Increase the amount of molasses
Increase the crystal size
Correct Answer :
A. Act as an acidifying agent
Related Questions
Hydrolysis of sugar is called
Hydration
Inversion
Esterification
None of these
Haemoglobin is a/an
Amino acid
Biological catalyst
Protein
Enzyme
The main product of high temperature carbonisation of coal is
Coke
Ammonia
Tar
Phenol
Deacon's method is used for the manufacture of
Glauber's salt
Common salt
Chlorine
Graphite electrode
Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.
Adsorbs
Oxidises
Reduces
Converts
The end bleaching agent used to move last traces of colour bodies from the pulp is
Chlorine dioxide (ClO2)
MgO
SO2 gas
Mercaptans
Which one of the following is not likely to be a constituent of vegetable oils?
Citric acid
Oleic acid
Stearic acid
Glycerol
Sulphur addition in soap is done to
Improve the soap texture
Cure pimples & dandruff
Fasten lather formation
Increase its cleansing action
Grignard reagent is chemically known as
Ethyl magnesium chloride
Methyl magnesium chloride
Dichlorophenol
Monochloroacetic acid
Which of the following is a detergent?
Benzene hexachloride
Alkyl benzene sulphonate
Polytetrafluoroethylene
Cellulose nitrate
Lubricating greases are a mixture of
Mineral oil, soap and additives
Mineral oil and metallic soap
Mineral oil and fatty oil
Fatty oil and metallic soap
Phthalic anhydride is used
In making PVC
As plasticisers
In insecticides manufacture
For making nylon-6
A bio-catalyst produced by living cells which acts independent of the cell is called a/an
Substrate
Enzyme
Nutrient
None of these
Which of the following has sodium bicarbonate as its main constituent?
Baking soda
Baking powder
Washing soda
None of these
Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate
Is prone to thermal decomposition
Has high water solubility and is unstable
Is soluble in ammonium chloride and potassium chloride solution
All (A), (B) and (C)
__________ acid is an unsaturated fatty acid.
Palmitic
Oleic
Stearic
Oxalic
Catalyst used during the manufacture of 'Vanaspati Ghee' is
Zinc
Nickel
Platinum
Copper
__________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.
Pyrex
Soda lime
Lead
High silica
__________ of quicklime produces slaked lime.
Hydration
Dehydration
Hydrogenation
None of these
Bisphenol A is produced by the condensation of acetone with
Formaldehyde
Ethyl alcohol
Diethyl ether
Phenol
The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to
Avoid mechanical weakening of fibre
Remove lignin by way of crystallisation
Increase the cellulose content
None of these
The main component of Pyrex glass is
Zinc
Lead
Boron
Selenium
Anion exchanger is regenerated usually with
NaOH
H2SO4
Hydrazine
Alum solution
Acrylonitrile is mainly used in the __________ industry.
Polymer
Printing
Dyeing
Photographic
Viscose rayon is chemically
Cellulose nitrate
Regenerated cellulose nitrate
Cellulose acetate
Regenerated cellulose acetate
Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of
Carbon
Arsenic
Lead
Sulphur
Salt is added in the kettle during soap manufacture to separate
Soap from lye
Glycerine from lye
The metallic soap
The unsaponified fat from soap
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
Oxygen is produced by fractionation of air using __________ process.
Linde's
Claude's
Either (A) or (B)
None of these
90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ °C.
< 0
10-30
250-280
500-600