हिंदी

Give the dot diagram of the first member of the alcohol.

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प्रश्न

Give the dot diagram of the first member of the alcohol.

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अति संक्षिप्त उत्तर
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उत्तर

Methyl alcohol (CH3OH) is the first member of alcohol. Its electron-dot structure is shown below:

\[\begin{array}{cc}
\ce{H}\phantom{...}\\
\ce{H^\bullet_\bullet\overset{\bullet\bullet}{\underset{\bullet\bullet}{C}}^\bullet_\bullet\overset{\bullet\bullet}{\underset{\bullet\bullet}{O}}^\bullet_\bullet H}\\
\ce{H}\phantom{...}
\end{array}\]

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अध्याय 12: Organic Chemistry - EXERCISE-12E [पृष्ठ २१५]

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एस पी सिंग Concise Chemistry [English] Class 10 ICSE
अध्याय 12 Organic Chemistry
EXERCISE-12E | Q 2. (a) | पृष्ठ २१५

संबंधित प्रश्न

What is a homologous series?


Write the molecular formula of first two members of homologous series having functional group -Cl.


Write the molecular formula of first two members of homologous series having functional group −Br.


Give the molecular formula of one homologue of the following:

C3H6

 


A colourless organic liquid X of molecular formula C2H4O2 turns blue litmus to red. Another colourless organic liquid Y of molecular formula C3H6O has no action on any litmus but it is used as a nail polish remover. A yet another colourless organic liquid Z of molecular formula C2H6O has also no action on litmus but it is used in tincture of iodine.

(a) Name the liquid X. To which homologous series does it belong? Give the name of another member of this homologous series.
(b) Name the liquid Y. To which homologous series does it belong? Write the name of another member of this homologous series.
(c) Can you name an organic compound having the same molecular formula as liquid Y but which belongs to a different homologous series? What is this homologous series?
(d) Name the liquid Z. To which homologous series does it belong? Write the name of another member of this homologous series.


Complete the correlation:

Alkene : C = C :: Alkyne: _______.


Complete the following table for homologous series of alcohols.

Name Molecular formula Condensed structural formula Number of carbon atom Number of -CH2- units Boiling point °C
Methanol CH4O CH3-OH 1 1 63
Ethanol C2H6O CH3–CH2-OH 2 2 78
Propanol C3H8O CH3–CH2–CH2-OH ______ ______ 97
Butanol C4H10O CH3–CH2–CH2–CH2–OH ______ ______ 118

What is called homologous series? Give any three of its characteristics?


Name the following organic compound:

The first homologue whose general formula is CnH2n.


Define Homologous series.


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