Related Questions

Activated Charcoal is used to remove colouring matter from pure substances by
A Bleaching
B Oxidation
C Adsorption
D Reduction
Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.
A Adsorbs
B Oxidises
C Reduces
D Converts
Yield of charcoal in high temperature carbonisation of wood is about __________ percent.
A 10
B 25
C 50
D 75
The ratio of % total carbon obtained in the ultimate analysis of coke and % fixed carbon obtained in the proximate analysis is always
A 1
B > 1
C Unpredictable
Polar organic compounds are normally used as separating agents for the azeotropic and extractive distillation. Which of the following is the most important factor to be considered for the choice of the separating agent for extractive distillation?
A Cost
B Availability
C Toxicity
D Selectivity
If the amount of the steam used in steam distillation is increased, the temperature of distillation
A Increases
B Decreases
C Remains unchanged
D Depends on relative volatility
Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about __________ mm Hg (absolute).
A 5-10
B 30-80
C 150-250
D 350-400
The charcoal used to decolourise brown sugar solution is
A Wood charcoal
B Coconut charcoal
C Animal charcoal
D Sugar charcoal
Charcoal is used in water treatment as a/an
A Absorbent
B Coagulant
C Solvent
D Adsorbent
Alcohol prepared by the distillation of wood is :
A Propyl alcohol
B Methyl alcohol
C Ethyl alcohol
D Glycerol

Next steps