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प्रश्न
Write general formula for alkynes.
उत्तर
Alkynes are hydrocarbons which contain carbon-carbon triple bonds. Their general formula is CnH2n-2 for molecules with one triple bond (and no rings).
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संबंधित प्रश्न
Draw the structures for Hexanal.
Fill in the following blank with suitable word:
CnH2n is the general formula of .......... hydrocarbons.
Write the names and structural formulae of all the possible isomers of hexane.
Why does the element carbon from a large number of carbon compounds?
Write the molecular formula and structure of cyclohexane. How many covalent bonds are there in a molecule of cyclohexane?
The number of carbon atoms in the organic compound named as 2,2-dimethylpropane is:
(a) two
(b) five
(c) three
(d) four
Which of the following are correct structural isomers of butane?
- \[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{..}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\phantom{..}\\
\ce{H - C - C - C - C - H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\phantom{..}\\
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{..}
\end{array}\] - \[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\phantom{....}|\\
\ce{H - C - C - C - H}\\
|\phantom{.....}\backslash\phantom{..}|\\
\phantom{.....}\ce{H}\phantom{.......}\ce{C - H}\\
\phantom{.........}|\\
\phantom{.........}\ce{H}
\end{array}\] - \[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\phantom{....}|\\
\ce{H - C - C - C - H}\\
|\phantom{....}\phantom{....}|\\
\ce{H}\phantom{........}\ce{H}\\
|\\
\ce{H - C - H}\\
|\\\ce{H}
\end{array}\] - \[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\\
\ce{H - C - C - H}\\
|\phantom{....}|\\
\ce{H - C - C - H}\\
|\phantom{....}|\\
\ce{H}\phantom{...}\ce{H}
\end{array}\]
How will you prove that C4H8 and C5H10 are homologues?
Recognise the carbon chain type of the following:
\[\begin{array}{cc}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\phantom{....}|\\\ce{H - C - C - C - H}\\
|\phantom{....}|\phantom{....}|\\\ce{H}\phantom{...}\ce{}\phantom{.....}\ce{H}\\
\ce{H - C - H}\\
|\\
\ce{H}
\end{array}\]
Write the chemical equation for the following:
Hydrogenation of ethene
