Unsaturated carbon compounds will give  _______ with lots of black smoke.

Fuels such as coal and petroleum have some amount of ______ and _______ which causes pollution on combustion.

CO groups is a ________ functional groups.

A liquid hydrocarbon can be converted to gaseous hydrocarbon by -

Compounds of carbon having double or triple bonds between their carbon atoms are called _____ compounds.

________ are substances that cause a reaction to occur to proceed at a different rate without reaction itself being affected.

The compounds which contain carbon and hydrogen are commonly known as ________.

Ethene is produced when

As the number of carbon atoms in a chain increases the boiling point of alkanes -

Sugar cane juice can be used to prepare molasses which is fermented to give ________.