EASY
Earn 100

Which of the following has highest knocking?

50% studentsanswered this correctly

Important Questions on Hydrocarbons

MEDIUM
The correct order of octane number is
EASY
Gasoline with an octane number of 80 is equivalent in knocking characteristics, to a mixture of heptane and iso-octane of the following composition
EASY
Discuss the composition of petroleum.
MEDIUM

 Match the following

1. Octane rating Diesel
2. Cetane rating Methane
3. Simplest hydrocarbon Petrol
4. Peat Brown in colour
5. Lignite First stage coal

 

MEDIUM
Define octane number of petrol.
HARD
Octane number can be changed by:
MEDIUM
Which of the following method is used to separate Petrol from crude oil?
EASY
TEL is a compound used as
MEDIUM
Calculate the octane number of gasoline fuel, which contains 25%n-heptane and 75% is iso-octane .
MEDIUM

The decreasing order of the anti-knocking value of octane number of the following is:

(I) CH4  (II) C2H6  (III) C3H8  (IV) C4H10

EASY
Octane number is zero for:
EASY

A petroleum fraction having boiling range 70200 oC and containing 610 carbon atoms per molecule is called

MEDIUM
Distinguish between octane number and cetane number.
EASY
Which of these processes is used in synthesis of petroleum?
EASY
Which of the following increases the octane number?
HARD
During winters, we generally prefer to use Vaseline. From which substance, do we get Vaseline?  
HARD
Explain Fischer-Tropsch process of synthesis of synthetic petrol.