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प्रश्न
Name the following organic compound:
The first homologue whose general formula is CnH2n.
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उत्तर
Ethene
Explanation:
CnH2n is the general formula for the homologous series of alkenes. The first member of the alkene family is the compound having two carbon atoms which are known as ethene. Methene is not possible as at least two carbons are required for the formation of the double bond.
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संबंधित प्रश्न
Write the next homologue of the following: C2H4
Write the molecular formula of first two members of homologous series having functional group -Cl.
Fill in the following blank with suitable word:
Ethene and ethyne are examples of ..... hydrocarbons.
The number of carbon atoms present in the molecule of fifth member of the homologous series of alkynes is:
(a) four
(b) five
(c) six
(d) seven
An organic compound having the molecular formula C3H6O can exist in the form of two isomers A and B having different functional groups. The isomer A is a liquid which is used as a solvent for nail polish. The isomer B is also a liquid. An aqueous solution of one of the lower homologues of B is used for preserving biological specimens in the laboratory
(a) What is compound A?
(b) Write the electron-dot structure of A.
(c) What is compound B?
(d) Write the electron-dot structure of B.
(e) Name the lower homologue of compound B which is used in preserving biological specimens.
The unsaturated hydrocarbons containing a carbon-carbon double bond are called _______.
While going in an increasing order there is a rise in the molecular mass of the consecutive members of the homologous series by _______.
As one ascends in any homologous series, physical properties change gradually.
Observe the structural formula and answer the following questions.
- Write the name of the given hydrocarbon.
- The given hydrocarbon is included in which type of hydrocarbon?
- What is the kind of compounds with the above characteristic structure called?
Name the third homologue of alcohols.
