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Question
Give the dot diagram of the first member of the alcohol.
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Solution
Methyl alcohol (CH3OH) is the first member of alcohol. Its electron-dot structure is shown below:
\[\begin{array}{cc}
\ce{H}\phantom{...}\\
\ce{H^\bullet_\bullet\overset{\bullet\bullet}{\underset{\bullet\bullet}{C}}^\bullet_\bullet\overset{\bullet\bullet}{\underset{\bullet\bullet}{O}}^\bullet_\bullet H}\\
\ce{H}\phantom{...}
\end{array}\]
RELATED QUESTIONS
Write the next homologue of the following: C4H6
Fill in the following blank with suitable word:
Carbon compounds have usually ... melting points and boiling points because they are ...... in nature.
What is homologous series ?
Write the name and molecular formula of the first member of the homologous series of alkynes.
Give the names of the first four members of the homologous series of
alkynes.
There are different general molecular formula for all members of the homologous series.
Complete the following table for the homologous series of alkanes.
| Name | Molecular formula | Condensed structural formula | Number of carbon atom | Number of -CH2- units | Boiling point °C |
| Methane | CH4 | CH4 | 1 | 1 | -162 |
| Ethane | C2H6 | CH3–CH3 | 2 | 2 | -88.5 |
| Propane | C3H8 | CH3–CH2–CH3 | 3 | 3 | -42 |
| Butane | C4H10 | CH3–CH2–CH2–CH3 | ______ | ______ | 0 |
| Pentane | C5H12 | CH3–CH2–CH2–CH2–CH3 | ______ | ______ | 36 |
| Hexane | C6H14 | CH3–CH2–CH2–CH2–CH2–CH3 | ______ | ______ | 69 |
Observe the structural formula and answer the following questions.
- Write the name of the given hydrocarbon.
- The given hydrocarbon is included in which type of hydrocarbon?
- What is the kind of compounds with the above characteristic structure called?
The first member of alkyne homologous series is
A carbon compound ‘A’ having melting point 156K and boiling point 351K, with molecular formula C2H6O is soluble in water in all proportions.
- Identify ‘A’ and draw its electron dot structure.
- Give the molecular formulae of any two homologues of ‘A’.
