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प्रश्न
Three organic compounds A, B and C have the following molecular formulae: C4H8O
Which molecular formula can represent an aldehyde as well as a ketone? Write the names and structural formulae of the aldehyde and ketone represented by this molecular formula.
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उत्तर
Compound 'C' (C4H8O), represents the molecular formula of an aldehyde as well as a ketone. The aldehyde represented by this formula is butanal (C3H7CHO).
The ketone represented by this formula is butanone (CH3COCH2CH3).
Their structural formulae are as follows:
संबंधित प्रश्न
Select saturated hydrocarbons from the following: C3H6; C5H10; C4H10; C6H14; C2H4
Explain why propane cannot exhibit the structural isomerism property.
CnH2n is the general formula of ______ hydrocarbons.
What is the unique property of carbon atom? How is this property helpful to us?
Giving the structure, state the number of single bonds, double bonds, and triple bonds (if any) in the following compound:
Benzene
The number of carbon atoms in the organic compound named as 2,2-dimethylpropane is ______.
Two organic compounds A and B have the same molecular formula C6H12. Write the names and structural formulae:
if B is an open chain compound
The solid element A exhibits the property of catenation. It is also present in the form of a gas B in the air which is utilised by plants in photosynthesis. An allotrope C of this element is used in glass cutters.
(a) What is element A?
(b) What is the gas B?
(c) Name the allotrope C.
(d) State another use of allotrope C (other than in glass cutters).
(e) Name another allotrope of element A which exists as spherical molecules.
(f) Name a yet another allotrope of element A which conduct electricity.
You are given the following molecular formulae of some hydrocarbons:
Which formula represents benzene?
You are given the following molecular formulae of some hydrocarbons:
C5H8; C7H14; C6H6; C5H10; C7H12; C6H12
Which three formulae represent open chain unsaturated hydrocarbons having double bonds?
Write the molecular and structural formula of a cyclic hydrocarbon whose molecule contains 8 atoms of carbon.
Which of the following are correct structural isomers of butane?
- \[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{..}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\phantom{..}\\
\ce{H - C - C - C - C - H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\phantom{..}\\
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{..}
\end{array}\] - \[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\phantom{....}|\\
\ce{H - C - C - C - H}\\
|\phantom{.....}\backslash\phantom{..}|\\
\phantom{.....}\ce{H}\phantom{.......}\ce{C - H}\\
\phantom{.........}|\\
\phantom{.........}\ce{H}
\end{array}\] - \[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\phantom{....}|\\
\ce{H - C - C - C - H}\\
|\phantom{....}\phantom{....}|\\
\ce{H}\phantom{........}\ce{H}\\
|\\
\ce{H - C - H}\\
|\\\ce{H}
\end{array}\] - \[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\\
\ce{H - C - C - H}\\
|\phantom{....}|\\
\ce{H - C - C - H}\\
|\phantom{....}|\\
\ce{H}\phantom{...}\ce{H}
\end{array}\]
Pentane has the molecular formula C5H12. It has ______.
Hydrocarbons are mainly composed of which of these?
Match the reactions given in Column (A) with the names given in column (B).
| Column (A) | Column (B) | ||
(a) |
`"CH"_3"OH" + "CH"_3"COOH"overset("H"^+)(->) "CH"_3"COOCH"_3 + "H"_2"O"` | (i) | Addition reaction |
| (b) | `"CH"_3 = "CH"_2 + "H"_2 overset("Ni")(->)"CH"_3 - "CH"_3` | (ii) | Substitution reaction |
| (c) | `"CH"_4 + "Cl"_2overset("Sunlight")(->)"CH"_3"Cl" + "HCl"` | (iii) | Neutralisation reaction |
| (d) | `"CH"_3"COOH" + "NaOH" -> "CH"_3"COONa" + "H"_2"O"` | (iv) | Esterification reaction |
How many isomers are possible for the compound with the molecular formula C4H8? Draw the electron dot structure of branched-chain isomer.
Draw two structural isomers of butane.
Draw the structure of propanol.
