हिंदी

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.(A) What is Compound A? (B) Write the Electron-dot Structure of A. - Science

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प्रश्न

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.

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उत्तर

(a) The isomer A is propanone (acetone).

(b) The electron-dot structure of propanone is::

(c) The isomer B is propanal.

(d)The electron-dot structure of propanal is:

(e) Methanal or formaldehyde is the lower homologue of compound B, which is used to preserve biological specimens.

 

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अध्याय 4: Carbon And Its Compounds - Exercise 2 [पृष्ठ २४३]

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लखमीर सिंग Chemistry (Science) [English] Class 10
अध्याय 4 Carbon And Its Compounds
Exercise 2 | Q 56 | पृष्ठ २४३

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संबंधित प्रश्न

State any four characteristics of a homologous series


Write the next homologue of the following: C2H4


Write the next homologue of the following: C4H6


What is meant by homologous series of carbon compounds?


Write the name and formula of the 2nd member of homologous series having general formula CnH2n.


Write the name and formula of the 2nd member of homologous series having general formula CnH2n + 2.


Write the molecular formula of first two members of homologous series having functional group -Cl.


What is a homologous series? Explain with an example.


The molecular formula of an organic compound is C18H36. Name its homologous series.


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


Give the structure of the second member of the alcohol group.


Give the names and the structural formula of the first three members of the homologous series of alkanes.


Write names of first four homologous series of alcohols.


Copy and complete the following table, which relates to the three homologous series of hydrocarbons:

General formula CnH2n CnH2n-2 CnH2n+2
IUPAC name of the homologus series      
Characteristic bond type     Single bonds
IUPAC name of the first member of the series      
Type of reaction with chlorine   Addition  

Haloalkanes react with alkalies to produce alcohol. Give the equation for the preparation of the second member of the homologous series of alcohol. State under what condition the reaction occurs.


While going in an increasing order there is a rise in the molecular mass of the consecutive members of the homologous series by _______.


Complete the following table for homologous series of alcohols.

Name Molecular formula Condensed structural formula Number of carbon atom Number of -CH2- units Boiling point °C
Methanol CH4O CH3-OH 1 1 63
Ethanol C2H6O CH3–CH2-OH 2 2 78
Propanol C3H8O CH3–CH2–CH2-OH ______ ______ 97
Butanol C4H10O CH3–CH2–CH2–CH2–OH ______ ______ 118

Complete the following table for homologous series of Alkenes.

Name Molecular formula Condensed structural formula Number of carbon atom Number of -CH2- units Boiling point °C
Ethene C2H4 CH2 = CH2 2 0 -102
Propene C3H6 CH3–CH = CH2 3 1 -48
1-Butene C4H8 CH3–CH2–CH = CH2 ______ ______ -6.5
1-Pentene C5H10 CH3–CH2–CH2–CH = CH2 ______ ______ 30

Which of the following does not belong to the same homologous series?


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