Carbon is often deposited in the exhaust-pipe of cars because of the?
presence of carbon in petrol
presence of carbon in petrol
incomplete combustion of petrol
presence of additives in petrol
contamination of petrol with diesel
Correct answer is C
The incomplete combustion process that occurs in an engine; result to the emission of carbon monoxide (CO) as a waste product from the exhaust system of vehicles.
Environmental carbon monoxide is produced by incomplete combustion process from any carbon containing fuel.
Which of the following pairs illustrates isotopy?
But-l-ene and but -2-ene
Ortho-hydrogen and parahydrogen
Oxygen and ozone
Hydrogen and deuterium
Alpha-particle and beta-particle
Correct answer is D
No explanation has been provided for this answer.
The replacement of traditional farming methods with modern methods is a step in agricultural
Expansion
Education
Development
Diversification
Correct answer is C
No explanation has been provided for this answer.
in the production of plastics
as domestic and industrial fuels
in the textile industry
in the hydrogenation of oils
as fine chemicals
Correct answer is B
No explanation has been provided for this answer.
Trioxosulphate (lV) acid is not stored for a long period because it
is a weak dibasic acid
has bleaching properties
is unstable and eaily decomposed
smells strongly of sulphur (lV) oxide
can act as a germicide
Correct answer is C
No explanation has been provided for this answer.