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प्रश्न
Write the molecular formula and possible structural formula of the first four members of homologous series of carboxylic acids.
उत्तर
| S.No. | Name | Molecular formula | Structural formula |
| 1. | Formic acid | CH2O2 | \[\begin{array}{cc}\ce{O}\phantom{..}\\ ||\phantom{..}\\\ce{H - C - OH} \end{array}\] |
| 2. | Acidic acid | C2H4O2 | \[\begin{array}{cc}\phantom{.}\ce{O}\\ \phantom{.}||\\\ce{CH3 - C - OH} \end{array}\] |
| 3. | Propionic acid | C3H6O2 | \[\begin{array}{cc}\phantom{........}\ce{O}\\ \phantom{........}||\\\ce{CH3 - CH2 - C - OH}\end{array}\] |
| 4. | n - Butyric acid | C4H8O2 | \[\begin{array}{cc}\phantom{...............}\ce{O}\\ \phantom{...............}||\\\ce{CH3 - CH2 - CH2 - C - OH}\end{array}\] |
| 5. | iso - Butyric acid | C4H8O2 | \[\begin{array}{cc}\phantom{.......}\ce{O}\\ \phantom{.......}||\\\ce{CH3 - CH - C - OH}\\ |\phantom{......}\\\ce{CH3}\phantom{...} \end{array}\] |
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\[\begin{array}{cc}
\ce{CH3}\phantom{..................}\\
|\phantom{....................}\\
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\ce{CH3}\phantom{.................}\\
|\phantom{....................}\\
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|\phantom{....}|\phantom{................}\\
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\[\begin{array}{cc}
\ce{CH3}\phantom{..................}\\
|\phantom{....................}\\
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|\phantom{....}|\phantom{................}\\
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