Which of the following processes is absent in glass manufacturing process ?
Which of the following processes is absent in glass manufacturing process ? A. Sintering B. Annealing C. Shag or forming D. Melting
Which of the following processes is absent in glass manufacturing process ? A. Sintering B. Annealing C. Shag or forming D. Melting
Bleaching of paper pulp is done with__________________? A. Activated clay B. BromineC. Chlorine or chlorine dioxide D. Magnesium sulphite
Concentration of sulphide ores is done usually by____________________? A. Roasting B. SmeltingC. Froth floatation D. Electromagnetic separation
Diaphragm electrolytic cell as compared to mercury electrolytic cell_____________________? A. Produces 70% NaOH solution B. Requires less specific power consumption for the production of chlorineC. Requires lesser investment for similar capacity D. All A , B. and C
Argon is the third largest constituent of air (followed by N2 & O2). Its percentage by volume in air is___________________? A. 0.14 B. 0.34C. 0.94 D. 1.4
Thermal pyrolysis of ethylene dichloride produces___________________? A. TrichloroethyleneB. Vinyl chloride C. Ethanol amine D. Ethylene oxide
Wood charcoal is used for decolouration of sugar, because it _______________ the coloured materials? A. Adsorbs B. Oxidises C. Reduces D. Converts
Massecuite is a terminology used in the ______________ industry ? A. Paint B. Oil hydrogenation C. SoapD. Sugar
Co-efficient of thermal expansion of glass is decreased by the addition of _______________ during its manufacture? A. CaO B. MnO2C. ZnO D. FeS
More than 100 percent of _________________ is present in oleum? A. SO3B. H2SO4 C. H2SO3 D. SO2