Chemical Engineering :: Chemical Process
- Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?
- Pick out the wrong statement.
- Nicotine is
- The purpose of tanning in leather industry is to
- What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?
- Pick out the wrong statement.
- During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as
- Which of the following is not present in bagasse fibre?
- Sodium carbonate (soda ash) is not used in the manufacture of
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A.
Fibrillation of fibre during paper manufacture is done to develop the strength in paper |
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B.
Alkali consumption in digestion/cooking of bamboo is measured in terms of permangnate number |
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C.
Bagasse fibre contains both lignin & cellulose |
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D.
Presence of sodium sulphate in pulp makes the pulp bleachability poor |
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A.
DDT is manufactured by the condensation of chlorobenzene with chloral at 30°C in presence of oleum, which is a highly exothermic reaction |
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B.
Chloral is obtained by the chlorination of ethyl alcohol |
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C.
Insecticides acting on the insects through the respiratory system are called fumigants |
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D.
Benzene hexachloride is not a contact insecticide |