A. Sulphur
B. Nitrogen
C. Oxygen
D. None of these
Related Mcqs:
- Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about ________________ ppm?
A. 1
B. 50
C. 5000
D. 10000 - Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl isobutyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the____________________?
A. Elimination of solvent drying facility
B. Higher nitration temperature
C. Lower solvent dilution ratio
D. All A., B. & C. - Tetra-ethyl lead is added in gasoline to ______________________?
A. Increase its smoke point
B. Reduce gum formation
C. Reduce the pour point
D. Increase its octane number - Straight run petrol as compared to methyl/ethyl alcohol has_________________?
A. Lower calorific value
B. Lower octane number
C. Higher specific gravity
D. Higher ignition temperature - Naphthenic acid is a/an ______________ compound?
A. Sulphur
B. Nitrogen
C. Oxygen
D. None of these - Which is an anticing compound ?
A. Amyl nitrate
B. Alcohols
C. Mercaptans
D. Pyridine - Quinoline is a/an ________________ compound ?
A. Sulphur
B. Nitrogen
C. Oxygen
D. None of these - Which of the following is not a sulphur compound present in petroleum ?
A. Thiophenes
B. Mercaptans
C. Sulphones
D. Pyrroles - Products drawn from the top to bottom of the crude oil distillation column has progressively increasing ___________________?
A. Boiling points
B. Molecular weight
C. C/H ratio
D. All A., B. and C. - Boiling range of motor gasoline is an indication of the ___________________?
A. Case of starting
B. Rate of acceleration
C. Vapour locking tendency
D. All A., B. and C.
