How many series or types of hydrocarbons are present in petroleum in important quantities? - Job.in

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Saturday, 31 July 2021

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How many series or types of hydrocarbons are present in petroleum in important quantities?

 How many series or types of hydrocarbons are present in petroleum in important quantities?


1) three
2) seven
3) five 
4) Four


Ans__4) Four

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