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

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प्रश्न

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

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उत्तर

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)

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पाठ 4: Carbon And Its Compounds - Exercise 2 [पृष्ठ २४१]

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लखमीर सिंह Chemistry (Science) [English] Class 10
पाठ 4 Carbon And Its Compounds
Exercise 2 | Q 31.2 | पृष्ठ २४१

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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.


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


A colourless organic liquid X of molecular formula C2H4O2 turns blue litmus to red. Another colourless organic liquid Y of molecular formula C3H6O has no action on any litmus but it is used as a nail polish remover. A yet another colourless organic liquid Z of molecular formula C2H6O has also no action on litmus but it is used in tincture of iodine.

(a) Name the liquid X. To which homologous series does it belong? Give the name of another member of this homologous series.
(b) Name the liquid Y. To which homologous series does it belong? Write the name of another member of this homologous series.
(c) Can you name an organic compound having the same molecular formula as liquid Y but which belongs to a different homologous series? What is this homologous series?
(d) Name the liquid Z. To which homologous series does it belong? Write the name of another member of this homologous series.


Give the abbreviated formula of the third member of the alcohol.


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


Why homologous series of carbon compounds are so called? Write chemical formula of two consecutive members of a homologous series and state the part of these compounds that determines their (i) physical properties, and (ii) chemical properties.


Distinguish between homologous organs and analogous organs. In which category would you place wings of a bird and wings of a bat? Justify your answer giving a suitable reason.


Give three points to differentiate between saturated and unsaturated
hydrocarbons.


Write the name and formula of the fourth member of the following homologous series:

Alkyne


Cyclohexane : Cyclic hydrocarbon : : Isobutylene : _______


Observe the structural formula and answer the following questions.

  1. Write the name of the given hydrocarbon.
  2. The given hydrocarbon is included in which type of hydrocarbon?
  3. What is the kind of compounds with the above characteristic structure called?

Complete the following chart by using examples given in brackets.

(isobutylene, cyclohexane, propane, cyclohexene, cyclopentane, benzene, propyne, isobutane, propene)

Straight chain hydrocarbons Branched chain hydrocarbons Cyclic hydrocarbons
     
     
     

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


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’.

Define Homologous series.


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?


Consider the carbon compounds having following molecular formula:

(i) C3H6 (ii) C3H8 (iii) C4H6 (iv) C6H6 (v) C6H12

  1. State the number of double covalent bonds present in C3H8.
  2. Write the formula of first member of the homologous series to which the carbon compound C4H6 belongs.
  3. Which one of the above compounds forms a ring structure of carbon atoms?
  4. Identify, which of the above compounds, is a member of alkane series.

Name the third homologue of alcohols.


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