Advertisements
Advertisements
Question
By how many carbon atoms and hydrogen atoms do any two adjacent homologues differ?
Advertisements
Solution
Any two adjacent homologues differ by 1 carbon atom and 2 hydrogen atoms in their molecular formulae.
APPEARS IN
RELATED QUESTIONS
Write the next homologue of the following: C2H4
Write the molecular formula of first two members of homologous series having functional group -Cl.
Write the molecular formula of first two members of homologous series having functional group – OH
Give the structural formula for 1, 2-dichloroethane
Complete the following table which relates to the homologous series of hydrocarbons.
|
General Formula |
IUPAC name of the homologous series | Characteristic bond type | IUPAC name of the first member of the series |
| `C_nH_(2n-2)` | (A)________ | (B)______ | (C)______ |
| C_nH_(2n+1) | (B)________ | (E)______ | (F)______ |
Fill in the following blank with suitable word:
Ethene and ethyne are examples of ..... hydrocarbons.
Define a homologous series. Give the name and structural formula of one homologue of the following:
CH3OH
The molecular formula of an organic compound is C18H36. Name its homologous series.
The molecular formula of the third member of the homologous series of ketones is:
(a) C4H8O
(b) C3H6O
(c) C5H10O
(d) C6H12O
Succeeding members of a homologous series differ by ______.
Give the abbreviated formula of the third member of the alcohol.
What is homologous series ?
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.
Study the different conclusions drawn by students of a class on the basis of observations of preserved/available specimens of plants and animals.
I. Potato and sweet potato are analogous organs in plants.
II. Wings of insects and wings of birds are homologous organs in animals.
III. Wings of insects and wings of bats are analogous organs in animals.
IV. Thorns of citrus and tendrils of cucurbita are analogous organs in plants.
The correct conclusions are:
(A) I, and II
(B) II and IV
(C) I and III
(D) III and IV
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.
Cyclohexane : Cyclic hydrocarbon : : Isobutylene : _______
Name the following organic compound:
The first homologue whose general formula is CnH2n.
Study and complete the following table:
| Homologous series | Alkane | Alkyne |
| General formula | CnH2n+2 | 1. ______ |
| IUPAC name | 2. ______ | Ethyne |
| Common name | Marsh gas | 3. ______ |
