Which of the following is the general formula for saturated

Which of the following is the general formula for saturated hydrocarbons?

CnH₂n+2
CnH₂n-2
CnH₂n+1
CnH₂n-1
This question was previously asked in
UPSC CDS-2 – 2018
Saturated hydrocarbons, also known as alkanes, are hydrocarbons where all carbon-carbon bonds are single bonds. The general formula for alkanes is CnH₂n+2, where ‘n’ represents the number of carbon atoms. This formula represents the maximum number of hydrogen atoms that can be bonded to ‘n’ carbon atoms in an acyclic structure with only single bonds.
– Saturated hydrocarbons are alkanes.
– They contain only single bonds between carbon atoms.
– The general formula represents the relationship between the number of carbon and hydrogen atoms in such molecules.
Unsaturated hydrocarbons include alkenes (at least one double bond, general formula CnH₂n) and alkynes (at least one triple bond, general formula CnH₂n-2). Cycloalkanes (cyclic saturated hydrocarbons) have the general formula CnH₂n.