A. Increasing the surface tension
B. Decreasing wettability
C. Supplying hydrophilic group
D. None of these
Soaps remove dirt by ____________________? Read More »
Chemical Process A. 70
B. 55
C. 80
D. 94
A. Penicillin
B. Antibiotics
C. Wine
D. Pasteurised milk
Yeast is used in the manufacture of ____________________? Read More »
Chemical Process A. Sulphur
B. Bromine
C. Platinum
D. Alumina
Most commonly used rubber vulcanising agent is___________________? Read More »
Chemical Process A. Are absorbed throughout the plant
B. Kill insects following external bodily contact
C. Are stomach poisons
D. Emit poisonous vapour
Systemic insecticides________________? Read More »
Chemical Process A. Sodium thiosulphate
B. Ethyl magnesium chloride
C. Sodium sulphite
D. Sodium bicarbonate
Chemical name of Grignard reagent is__________________? Read More »
Chemical Process A. Naphthalene
B. Benzene
C. Toluene
D. Aniline
Phthalic anhydride is produced by the oxidation of _________________? Read More »
Chemical Process A. 0.1 to 0.5
B. 1 to 5
C. 5 to 10
D. 15 to 25
A. Laminates
B. Card boxes
C. Furniture
D. Books
Phenol formaldehyde resin is used as an adhesive in making__________________? Read More »
Chemical Process A. It is very corrosive at elevated temperature
B. Its viscosity is not reduced on further heating (hence pressure drop on pumg it, cannot be
further reduced)
C. It decomposes on further increasing the temperature
D. None of these
