Glycol added to petrol acts as a/an ________________ agent ?

Related Mcqs:

1. Tetraethyl lead is added to the petrol to increase its octane number, because its octane number is ________________?

   A. More than 100
   B. Round about 100
   C. Between 50 and 100
   D. Less than 25

2. Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is_________________?

   A. Propane
   B. Diethylene glycol
   C. Aqueous solution (10% water) of diethylene glycol
   D. Methyl ethyl ketone (MEK)

3. Antioxidants are added in petrol to _____________________?

   A. Impart colour to it, for easy identification
   B. Minimise the gum formation
   C. Prevent icing of the carburettor
   D. Prevent the lead build up in engines

4. The amount of tetraethyl lead added to improve the octane number of motor gasoline is around ______________ c.c per gallon of petrol?

   A. 3
   B. 300
   C. 3000
   D. 1000

5. 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

6. In sweetening process, solutizer agent used with caustic alkali is_______________?

   A. Potassium isobutyrate
   B. Sodium plumbite
   C. Methanol
   D. Phenol

7. Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic____________________?

   A. Cracking
   B. Polymerisation
   C. Reforming
   D. Isomerisation

8. Molecular weight of petrol may be about ____________________?

   A. 40-60
   B. 100-130
   C. 250-300
   D. 350-400

9. Which of the following is desirable in petrol (gasoline) but undesirable in kerosene ?

   A. Paraffins
   B. Aromatics
   C. Mercaptans
   D. Naphthenic acid

10. Stabilisation of gasoline (petrol) means ___________________?

    A. Removal of dissolved gases from it
    B. Increasing its oxidation stability
    C. Improving its lead susceptibility
    D. Increasing its vapour pressure