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प्रश्न
Write a short note.
Functional groups in carbon compounds
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उत्तर
- Many more types of carbon compounds are formed by formation of bonds of carbon with other elements such as halogens, oxygen, nitrogen, sulphur.
- The atoms of these elements (hetero atoms) substitute one or more hydrogen atoms in the hydrocarbon chain and thereby the tetravalency of carbon is satisfied.
- The compound acquire specific chemical properties due to these heteroatoms or the groups of atoms that contain heteroatoms, irrespective of the length and nature of the carbon chain in that compound.
- Therefore, these hetero atoms or the groups of atoms containing hetero atoms are called functional groups.
E.g. In CH3 – OH, –OH (alcohol) is the functional group-containing heteroatom ‘oxygen’.
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संबंधित प्रश्न
Find the odd one out and give its explanation.
Find the odd one out and give its explanation.
Write the molecular formula of the given compound.
Acetylene
Write the molecular formula of the given compound.
Isobutane
Match the columns.
| Group A | Group B |
| 1. Straight chain hydrocarbon | a) Benzene |
| 2. Branched chain hydrocarbon | b) Propyne |
| 3. Cyclic hydrocarbon | c) Isobutylene |
Benzene is a cyclic unsaturated hydrocarbon.
Right or wrong sentence.
LPG butane is a flammable element in.
Write scientific reason.
Ethylene is an unsaturated hydrocarbon.
Distinguish between:
Saturated hydrocarbons - Unsaturated hydrocarbons
Distinguish between:
Open chain hydrocarbons - Closed chain hydrocarbons
Distinguish between:
Alkane - Alkene
Which of these is true for most of the organic compounds?
Chlorine reacts with saturated hydrocarbons at room temperature in the
Consider the following organic compounds:
| (i) \[\begin{array}{cc} \ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\ |\phantom{....}|\phantom{....}|\\ \ce{H - C - C - C = O}\\ |\phantom{....}|\phantom{.....}\\ \ce{H}\phantom{....}\ce{H}\phantom{.....} \end{array}\] |
(ii) \[\begin{array}{cc} \phantom{....}\ce{H}\phantom{...}\ce{H}\phantom{....}\\ \phantom{....}|\phantom{....}|\phantom{....}\\ \ce{H - C - C = O}\\|\phantom{.....}\\ \ce{H}\phantom{.....}\end{array}\] |
- Name the functional group present in these compounds.
- Write the general formula for the compounds of this functional group.
- State the relationship between these compounds and draw the structure of any other compound having a similar functional group.
Identify heteroatom (s) in the following compound.
\[\begin{array}{cc}
\ce{CH3CH2 - C - CH3}\\\
\phantom{....}||\
\ce\\\phantom{....}{O}\end{array}\]
Identify heteroatom (s) in the following compound.
\[\ce{CH3CH2Cl}\]
______ is the functional group of carboxylic acid.
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3}\phantom{...}\ce{CH3}\phantom{.......}\\
|\phantom{.......}|\phantom{.........}\\
\ce{CH2 - CH - CH2}\\
\phantom{...........}|\\
\phantom{......................}\ce{CH2}\ce{CH2}\ce{CH3}
\end{array}\]
