Gum formation in stored gasoline is mainly due to the ____________________?

Related Mcqs:

1. Gasoline extracted from natural gas (by compression and cooling) is called the ___________ gasoline?

   A. Polymer B. Unleaded C. Casing head D. Straight run...

2. Pyrolysis of kerosene or natural gasoline is done to produce mainly the___________________?

   A. Olefins and aromatics B. Lighter paraffins C. Stabilised gasoline D. Diesel...

3. “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....

4. Which of the following has the highest gum forming tendency in gosoline ?

   A. Paraffins B. Diolefins C. Aromatics D. Naphthenes...

5. Which of the following reactions is undesirable in the production of catalytically reformed gasoline ?

   A. Dehydrogenation of Naphthene B. Dehydrogenation of lower paraffins C. Dehydrocyclization of higher paraffins D. Isomerisation of paraffins...

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

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

7. Which of the following categories of gasoline has the highest lead susceptibility ?

   A. Straight run gasoline B. Platinum reformed gasoline C. Catalytical cracked gasoline D. Polymer gasoline...

8. 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...

9. Flash point of motor gasoline may be around ______________ °C?

   A. 10 B. 45 C. 100 D. 150...

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...