A. Inferior coke compared to low temperature carbonisation
B. Less of gases compared to liquid products
C. Larger quantity of tar compared to low temperature carbonisation
D. None of these
Related Mcqs:
- The main product of high temperature carbonisation of coal is_____________________?
A. Coke
B. Ammonia
C. Tar
D. Phenol - The yield of tar from high temperature carbonisation of dry coal is about _______________ percent?
A. 3
B. 12
C. 22
D. 0.3 - High temperature carbonisation of coal takes place at __________________ °C?
A. 2000
B. 700
C. 1100
D. < 500 - Low temperature carbonisation of coal takes place at _______________ °C ?
A. 300
B. 1100
C. 700
D. 900 - Fusion of bauxite and ________________ produces high alumina cement?
A. Alum
B. Limestone
C. Coke
D. Quartz - Fusion of limestone and ______________ produces high alumina cement?
A. Sand
B. Bauxite
C. Quicklime
D. Calcite - Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at _____________ °C ?
A. 15-30
B. 90-100
C. 250-300
D. < 0 - Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is ______________ °C?
A. 25
B. 60-70
C. 150-200
D. 250-300 - High acid value of an oil or fat is an indication of _____________________?
A. Storage under improper conditions
B. Absence of unsaturation
C. Its smaller molecular weight
D. None of these - Refractory bricks burnt at very high temperature have got______________?
A. Greater resistance to corrosion by slags
B. Less resistance to corrosion by slags
C. High spalling tendency
D. None of these
