A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).
Select an option to see the answer and solution.
Which of the following is a detergent?
A. Benzene hexachloride
B. Alkyl benzene sulphonate
C. Polytetraflouroethylene
D. Cellulose nitrate
Select an option to see the answer and solution.
Which of the following is a detergent?
A. Fatty alcohol
B. Alkyl benzene sulphonate (ABS)
C. Fatty acids
D. Methylene chloride
Select an option to see the answer and solution.
The main use of HCl is in the
A. Drilling of petroleum wells and pickling of steel sheets
B. Manufacture of cationic detergent
C. Treatment of spent fuel of nuclear reactor
D. None of these
Select an option to see the answer and solution.
The major use of butadiene is
A. As a plasticiser for unsaturated polyester
B. In the manufacture of synthetic rubber
C. As an anti-skinning agent in paint
D. None of these
Select an option to see the answer and solution.
One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to
A. Adjust the pH of the syrup
B. Remove the coloring matter from the syrup
C. Reduce the viscosity of the syrup
D. Improve the rate of crystallisation of sugar
Select an option to see the answer and solution.
The most commonly used substance to speed up the sedimentation of sewage is
A. Lime
B. Sulphuric acid
C. Chlorine
D. Sodium bisulphite
Select an option to see the answer and solution.
Thermoplastic materials
A. Do not soften on application of heat
B. Are heavily branched molecules
C. Are solvent insoluble
D. None of these
Select an option to see the answer and solution.
Thermosetting materials
A. Are cross-linked molecules
B. Soften on application of heat
C. Are solvent soluble
D. None of these
Select an option to see the answer and solution.
Thorium is mainly used
A. For the manufacture of gas mantles
B. As a fissile fuel in a nuclear reactor
C. In the manufacture of hydrogen bomb
D. In the treatment of cancer
Select an option to see the answer and solution.
Styrene is produced from ethyl benzene by the process of
A. Dehydrogenation
B. Oxidation
C. Alkylation
D. Dehydration
Select an option to see the answer and solution.
Styrene is produced from ethyl benzene by the process of
A. Dehydrogenation
B. Oxidation
C. Alkylation
D. Dehydration
Select an option to see the answer and solution.
Poly tetraflouro ethylene (P.T.F.E.) is known as
A. Bakelite
B. Teflon
C. Celluloid
D. Decron
Select an option to see the answer and solution.
Zeolite is a/an
A. Naturally occuring clay which is capable of exchanging cations
B. Abrasive material
C. Catalyst used in shift conversion
D. None of these
Select an option to see the answer and solution.
Synthetic glycerine is produced from
A. Toluene
B. Phenol
C. Propylene
D. Naphthalene
Select an option to see the answer and solution.
Dehydrogenation of ethyl benzene produces
A. Styrene
B. Naphthalene
C. Phenol
D. Benzoic acid
Select an option to see the answer and solution.
Pick out the wrong statement pertaining to solvent extraction of oil. Rate of extraction
A. Decreases with decrease of thickness of the flakes
B. Increases with the increasing flake size keeping the flake thickness constant
C. Increases Considerably with the rise of temperature
D. Decreases as the moisture content of flakes increases
Select an option to see the answer and solution.
Catalyst used in the oxidation of benzene to produce maleic anhydride is
Select an option to see the answer and solution.
The enzyme which converts starch into the disacharides maltose is
A. Diastase
B. Maltase
C. Yeast
D. None of these
Select an option to see the answer and solution.
Trinitro-toluene (TNT) is
A. Used in glycerine manufacture
B. An explosive
C. Used in dye manufacture
D. None of these
Select an option to see the answer and solution.