English

(B) Write the Names and Formulae for the First Three Members of the Homologous Series for Chloroalkanes. - Science

Advertisements
Advertisements

Question

Write the names and formulae for the first three members of the homologous series for chloroalkanes.

Advertisements

Solution

The general formula of chloroalkanes (haloalkanes) is CnH2n+1-X (where, X is Cl, Br or I).

Therefore, the first three members of the chloroalkane series will be:
Chloromethane (CH3Cl)
Chloroethane (C2H5Cl)
Chloropropane (C3H7Cl)

shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Carbon And Its Compounds - Exercise 2 [Page 241]

APPEARS IN

Lakhmir Singh Chemistry (Science) [English] Class 10
Chapter 4 Carbon And Its Compounds
Exercise 2 | Q 31.2 | Page 241

Video TutorialsVIEW ALL [2]

RELATED QUESTIONS

Write the molecular formula of two consecutive members of homologous series of aldehydes. State which part of these compounds determines their

  1. physical and 
  2. chemical properties

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


Write the molecular formula of the 2nd and 3rd member of the homologous series where the first member is ethyne.


What is the next higher homologue of methanol (CH3OH)?


What is a homologous series? Explain with an example.


What is the difference in the molecular formula of any two adjacent homologues in terms of the number and kind of atoms per molecule?

Write the name and molecular formula of the first member of the homologous series of alkynes.


Write names of first four homologous series of alcohols.


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


Saturated hydrocarbon : Single bond : : Unsaturated hydrocarbon : _______


Write a short note.

Homologous series


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 pairs can be the successive members of a homologous series?


C3H8 belongs to the homologous series of ______.


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


Name the following organic compound:

The first homologue whose general formula is CnH2n.


A carbon compound ‘A’ having melting point 156K and boiling point 351K, with molecular formula C2H6O is soluble in water in all proportions.

  1. Identify ‘A’ and draw its electron dot structure.
  2. Give the molecular formulae of any two homologues of ‘A’.

Write the chemical formula of two consecutive homologous of organic compounds having functional group - OH. 

What happens to the (i) boiling point and (ii) solubility of organic compounds of a homologous series as the molecular mass increases?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×