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Question
The general molecular formula for the homologous series of alkynes is _______.
Options
CnH2n
`"C"_"n""H"_("2n" + 2)`
`"C"_"n""H"_("2n" - 2)`
`"C"_"n""H"_("2n" - 1)`
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Solution
The general molecular formula for the homologous series of alkynes is `underline("C"_"n""H"_("2n" - 2))`.
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| General formula | CnH2n | CnH2n-2 | CnH2n+2 |
| IUPAC name of the homologus series | |||
| Characteristic bond type | Single bonds | ||
| IUPAC name of the first member of the series | |||
| Type of reaction with chlorine | Addition |
Write the name and formula of the fourth member of the following homologous series:
Alkyne
The unsaturated hydrocarbons containing a carbon-carbon double bond are called _______.
Cyclohexane : Cyclic hydrocarbon : : Isobutylene : _______
Saturated hydrocarbon : Single bond : : Unsaturated hydrocarbon : _______
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Complete the following chart by using examples given in brackets.
(isobutylene, cyclohexane, propane, cyclohexene, cyclopentane, benzene, propyne, isobutane, propene)
| Straight chain hydrocarbons | Branched chain hydrocarbons | Cyclic hydrocarbons |
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- Identify ‘A’ and draw its electron dot structure.
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Name the following:
Group of organic compounds where the successive members follow a regular structural pattern, successive compounds differ by a 'CH2' group.
