Related Questions

CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones.
A 102
B 105
C 109
D 1015
Which of the following is desirable in diesel and kerosene but is undersirable in gasoline?
A Aromatics
B Mercaptans
C Paraffins
D Naphthenic acid
Although it can be derived_ oil, coal, and tar kerosene is usually produced_ refining it from petroleum.
A from/by
B by/from
C in/from
D at/for
Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst.
A Bauxite
B Fuller's earth
C Activated clay
D All of the above
Although it can be derived _______ oil, coal and tar, kerosene is usually produced _______ refining it from petroleum.
A from/by
B in/from
C at/on
D near/along
Which of the following metals is stored in kerosene oil?
A Copper
B Sodium
C Platinum
D Gold
Which of the following is desirable in petrol (gasoline) but undesirable in kerosene?
A Paraffins
B Aromatics
C Mercaptans
D Naphthenic acid
On fixed deposits, Bank X offers an interest of 13.5% per year and Bank Y offers 14.00% per annum. Arianna kept taka one million with Bank X for a year and Tatiana kept the same amount in Bank Y also for a year? How much did Arianna lose at the end of the year in taka?
A 5,000
B 6,000
C 4,500
D 5,500
Which is the most undesirable component in kerosene?
A Aromatics
B I-paraffins
C N-paraffins
D Naphthenes
Which is the most desirable component of a good quality kerosene?
A I-paraffins
B Aromatics
C N-paraffins
D Naphthenes

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