Science Chemistry MCQ-198

General Science-Chemistry online Exam JPSC, UPSC, NDA, CivilsPrelims, RBI, UPPSC, SSC, CDS Exams



The name fire damp is given

 
 
 
 

Marsh gas mainly contains

 
 
 
 

The compound with the highest boiling point is

 
 
 
 

When water vapours are passed over aluminium carbide,we get

 
 
 
 

Satuarated hydrocarbons undergo

 
 
 
 

Carbon black is obtained when methane is

 
 
 
 

What is the volume of oxygen required for the complete combustion of 4 litres of ethane

 
 
 
 

Kerosene is a mixture of

 
 
 
 

Which of the following substance is used as antiknock compound ?

 
 
 
 

Most of hydrocarbons from petroleum are obtained by-

 
 
 
 

Knocking sound is produced in the engine when the fuel contains

 
 
 
 

The knocking will be minimum when the mixture of fuel is

 
 
 
 

Petroleum is a mixture of

 
 
 
 

Petroleum is found

 
 
 
 

Iso-octane is added to petrol

 
 
 
 

Petroleum consists of

 
 
 
 

The fraction obtained between temperature 150-3000C during fractional distillation of crude petroleum is

 
 
 
 

A mixture of CS2 and H2S on passing over heated copper gives

 
 
 
 

The gas supplied in cylinders for cooking is

 
 
 
 

The thermal decomposition of alkanes is known as

 
 
 
 

Octane number of a fuel can be increased by

 
 
 
 

Which of the following compounds has been given an octane number of 100 ?

 
 
 
 

Which of the following is not linked with methane ?

 
 
 
 

paraffin wax is

 
 
 
 

Purification of petroleum is carried out by the following method