Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

im not able to understand the steps involved in the IUPAC nomenclature for branched chain saturated hydrocarbons......in addition to this im not getting that how does 2-methylpropane differ from isobutane coz both of them have same structues?Can i write isobutane instead of methyl propane?What difference would it make?
Asked by Nancy Mishra | 11 Dec, 2011, 09:17: PM
Expert Answer
Yes. Both the names are correct but according to IUPAC 2-methylpropane is correct.  
For branched chain nomenclature :
  • Identify each of the branches (side-chains).

     

  • Use the lowest number combinations for the branches (side-chains).

     

  • Name each branch or side-chain (alkyl group) :
    methyl CH3
    ethyl C2H5
    propyl C3H7

     

  • For more than 1 of the same alkyl group use:
    di = 2
    tri = 3
    tetra = 4

     

  • Use commas between numbers, eg, 1,2 or 2,3

     

  • Use hyphens between numbers and words, eg, 2-methyl or 2,3-dimethyl

     

  • If there is more than 1 type of branch or side-chain, arrange their names alphabetically, 
    ie, ethyl groups are named before methyl groups which are named before propyl groups
Answered by | 12 Dec, 2011, 02:06: PM
CBSE 10 - Chemistry
Asked by asra964072 | 18 May, 2022, 10:03: PM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by jainnikhil668 | 05 May, 2022, 02:00: PM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by shubham.sharma80634 | 10 Feb, 2022, 08:43: PM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by Trisha Gupta | 25 Jan, 2022, 03:02: PM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by Trisha Gupta | 25 Jan, 2022, 03:01: PM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by sivaramaraju1000 | 21 Jan, 2022, 09:05: AM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by bhoomikajain68 | 05 Jan, 2022, 09:45: PM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by tanishkashirodkar48 | 10 Nov, 2021, 08:01: PM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by shreyanshbargal1977 | 09 Apr, 2021, 09:13: AM
ANSWERED BY EXPERT
Season Break Offer!
Get 60% Flat off instantly.
Avail Now
×