Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
5.0k views
in Chemistry by (56.2k points)
closed by

How are the following pairs related? 

(i) 2, 2-dimethylpropane and 2-methylbutane 

(ii) Ethane and propane 

(iii) C2H5C1 and C3H7Cl 

(iv) C3H4 and C2H4

1 Answer

+1 vote
by (51.5k points)
selected by
 
Best answer

(i) The structural formula of the two compounds are shown below.

2,2-dimethylpropane

2-methylbutane 

Note that both compounds have the same molecular formula C5H12. Since they have same molecular formula but different structural formula, they are isomers. 

(ii) Ethane (C2H6) and propane (C3H8) can be represented by the general formula CnH2n+2 where ‘n’ is the number of carbon atoms. Also they differ by a –CH2 unit. Hence they are homologues. 

(iii) C2H5Cl and C3H7Cl differ by a –CH2 unit. Also these 2 can be represented by the formula CnH2n+1Cl. Therefore they are homologues. 

(iv) C3H4 is an alkyne and C2H4 is an alkene. Both the compounds contain double or triple bonds. Therefore, they belong to the family of unsaturated compounds.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...