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Question
Classify the following carbon compounds into two homologous series and name them.
C3H4, C3H6, C4H6, C4H8, C5H8, C5H10
Solution
The given carbon compounds can be classified into the following two homologous series:-
a) Alkenes:- Propene C3H6, Butene C4H8, Pentene C5H10
b) Alkynes:- Propyne C3H4, Butyne C4H6, Pentyne C5H8
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RELATED QUESTIONS
Write the next homologue of the following: C2H4
Write the name and formula of the 2nd member of homologous series having general formula CnH2n + 2.
The following vegetables are kept in a basket :
Potato, Tomato, Radish, Brinjal, Carrot, Bottle-gourd
Which two of these vegetables correctly represent the homologous structures?
(A) Carrot and Tomato
(B) Potato and Brinjal
(C) Radish and Carrot
(D) Radish and Bottle-gourd
Define a homologous series. Give the name and structural formula of one homologue of the following:
CH3OH
Give the abbreviated formula of the third member of the alcohol.
Give the names and the structural formula of the first three members of the homologous series of alkanes.
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
Write a short note.
Homologous series
Consider the following molecular formulae of carbon compounds:
(i) CH3COOH (ii) CH3OH (iii) C2H6 (iv) C3H4 (v) C4H8
- Which one of these compounds belongs to homologous series of alcohols?
- Identify the compound having triple bond between carbon-carbon atoms.
- Write the molecular formula of the first member of the homologous series to which CH3COOH belongs.
- Write the general formula of the series to which the compound C4H8 belongs.
Name and draw the electron dot structure of first homologue of alkynes series.
