A. R-COOH
B. R-S-H
C. R-S-R
D. R-S-R’
Related Mcqs:
- Mercaptans are added to liquefied petroleum gas (LPG) to _____________________ ?
A. Reduce its cost
B. Narrow down its explosion limit
C. Assist in checking its leakage from cylinder
D. Increase its calorific value - Solution used in Doctor’s treatment for the removal of mercaptans is_________________?
A. Sodium hydroxide
B. Sodium plumbite
C. Cupric chloride
D. Potassium isobutyrate - Mercaptans are________________?
A. Low boiling sulphur compounds
B. Added in LPG cylinders to detect gas leakage by its smell
C. Undesirable in petrol, as they reduce its octane number
D. All A., B. and C. - Naphthenic acid is represented by ___________________?
A. CnH2n+2O2
B. CnH2n-2O2
C. CnH2n+2O2 (n ≥ 6)
D. CnH2n+6O2 (n ≤ 6) - Liquefied Petroleum Gas (LPG) is mainly a mixture of _____________________?
A. Propane & butane
B. Methane & ethane
C. High boiling olefins
D. High boiling naphthenes - Crude oil is transported inland from oil field to refineries, mainly by the _____________________?
A. Road tankers
B. Rail tankers
C. Underground pipelines
D. None of these - The main reaction in reforming is the _____________________?
A. Dehydrogenation of naphthenes
B. Hydrogenation of naphthenes
C. Hydrocracking of paraffins
D. Saturation of olefins - “Breathing loss” on storage of gasoline occurs due to the _____________________?
A. Presence of unsaturated air
B. Fluctuation of ambient temperature during day and night
C. Both A. and B.
D. Neither A. nor B. - Flash point of an oil is determined by the _____________________?
A. Pensky Martens apparatus
B. Ramsbottom apparatus
C. Saybolt viscometer
D. Conradson apparatus - Removal of light fractions from crude oil is called its _____________________?
A. Sweetening
B. Dehydration
C. Stabilisation
D. Visbreaking
