GENERAL KNOWLEDGE

Detailed explanation-1: -Hydrocarbons having at least one triple bond between two carbon atoms are known as alkyne. General formula of alkyne is CnH2n−2. As in case of alkene, minimum two carbon atoms are required to form alkyne.

Detailed explanation-2: -The number of alkane family represents the general formula CnH2n+2 . In this formula: n = number of carbon atoms in the same molecule of alkane. 2n + 2 = number of H-atoms in a molecule of alkane. ‘C nH (2n+2)‘ is the general formula of a homologous series of hydrocarbons.

Detailed explanation-3: -CnH2n+2 is the standard formula for alkanes. These are called saturated hydrocarbons. It means all carbon atoms are bonded to the maximum amount of hydrogen atoms possible, i.e. saturated with hydrogen. CnH2n is the standard formula for alkenes.

Detailed explanation-4: -Whenever in a molecule of an alkane there are n carbon atoms, then in this molecule there are exactly 2n+2 hydrogen atoms. There are very many different alkanes with a given number n of carbon atoms (see below), but in all such molecules the number of hydrogen atoms is 2n + 2.