A. 3
B. 12
C. 22
D. 0.3
Related Mcqs:
- The main product of high temperature carbonisation of coal is_____________________?
A. Coke
B. Ammonia
C. Tar
D. Phenol - High temperature carbonisation of coal takes place at __________________ °C?
A. 2000
B. 700
C. 1100
D. < 500 - High temperature carbonisation of coal produces _____________________ ?
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 - Low temperature carbonisation of coal takes place at _______________ °C ?
A. 300
B. 1100
C. 700
D. 900 - Carbon content of pitch (residue of coal tar distillation) is around ________________ percent?
A. 70
B. 55
C. 80
D. 94 - Which of the following is not a product of coal tar distillation ?
A. Anthracene
B. Creosote oil
C. Carbolic oil
D. None of these - Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because__________________?
A. Its calorific value is very less
B. Tar neutralises the residual acids present in pitch
C. It reduces viscosity and imparts fluidity for its transportation through pipelines at economic
pressure drop
D. All A, B. and C. - The terminology ‘BTX’ used in coal tar distillation industry refers to___________________?
A. Benzol-toluol-xylol
B. Benzol-toluene-xylene
C. Benzene-toluol-xylol
D. Benzene-toluene-xylene - Coal tar is used as a___________________?
A. Binding material for coal briquettes
B. Fuel in rotary kiln
C. Binder in making carbon electrodes
D. All A , B. and C. - Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about _____________ percent?
A. 75
B. < 10
C. > 30
D. 50
