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Match the following. A Propene 1 Unsaturated 3 carbon chains with double bond B Propyne 2 Unsaturated 3 carbon chains with triple bond C Propane 3 Saturated 3 carbon bonds
A-3, B-1, C-2
A-1, B-2, C-3
A-3, B-2, C-1
A-2, B-1, C-3
1, B-2, C-3
Hydrocarbons are classified based on the nature of their carbon-carbon bonds. Alkanes (CnтАЛH2n+2тАЛ) contain only single bonds (saturated), while alkenes (CnтАЛH2nтАЛ) and alkynes (CnтАЛH2nтИТ2тАЛ) contain at least one double or triple bond respectively (unsaturated).
Hydrocarbons are classified based on the nature of their carbon-carbon bonds. Alkanes (CnтАЛH2n+2тАЛ) contain only single bonds (saturated), while alkenes (CnтАЛH2nтАЛ) and alkynes (CnтАЛH2nтИТ2тАЛ) contain at least one double or triple bond respectively (unsaturated).
Think of saturated hydrocarbons as a 'full' bus where every seat (bond) is taken by a hydrogen passenger, while unsaturated hydrocarbons are like a bus with empty seats where new passengers (atoms) can be added through chemical reactions.
ANE-ENE-YNE: Single (1), Double (2), Triple (3).
CnтАЛH2n+2тАЛ тАФ General formula for Alkanes (Saturated)
CnтАЛH2nтАЛ тАФ General formula for Alkenes (Unsaturated)
CnтАЛH2nтИТ2тАЛ тАФ General formula for Alkynes (Unsaturated)
The degree of unsaturation is determined by the presence of ╧А bonds. Propane (C3тАЛH8тАЛ) has only single bonds, making it saturated. Propene (C3тАЛH6тАЛ) possesses a double bond, and propyne (C3тАЛH4тАЛ) possesses a triple bond, rendering both unsaturated.
Saturated hydrocarbons have maximum hydrogen atoms possible per carbon atom.
Unsaturated hydrocarbons undergo addition reactions due to the presence of pi bonds.
The prefix 'prop-' denotes a three-carbon backbone chain.
Alkenes and alkynes are highly reactive, serving as essential building blocks for plastics and synthetic fibers.
Unsaturated hydrocarbons are generally more flammable and reactive than alkanes.
Propane is widely used as a fuel for heating and cooking (LPG).
Propene is a major precursor for the production of polypropylene plastic.
The suffix '-ane' corresponds to sp3 hybridization, '-ene' to sp2, and '-yne' to sp carbon centers.
Option B is the correct match: A-1 (Propene is unsaturated with a double bond), B-2 (Propyne is unsaturated with a triple bond), C-3 (Propane is saturated).
B is correct тАФ Propene contains a double bond (alkene), Propyne contains a triple bond (alkyne), and Propane contains only single bonds (alkane).
Remember that in competitive exams, always count the number of carbons first (e.g., meth=1, eth=2, prop=3) before checking the bond type (suffix).
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