- Exam
- JEE Main
- Year
- 2024
- Date
- 31 January
- Shift
- Morning Shift
- Subject
- Chemistry
- Chapter
- General Organic Chemistry
JEE Main 2024 · 31 January · Morning Shift · Chemistry · General Organic Chemistry
Given below are two statements: Statement I: IUPAC name of HO - CH...
Given below are two statements:
Statement I: IUPAC name of is -hydroxyheptan--one.
Statement II: -oxoheptan--ol is the correct IUPAC name for the above compound.
In the light of the above statements, Choose the most appropriate answer from the options given below:
Options
- AStatement I is correct but Statement II is incorrect.
- BBoth Statement I and Statement II are incorrect.
- CBoth Statement I and Statement II are correct.
- DStatement I is incorrect but Statement II is correct.
Correct answer
A. Statement I is correct but Statement II is incorrect.
Step-by-step solution
Rule 1 :- The longest chain in the molecule will be the parent chain. So, the first thing one should do is to find the longest carbon chain in the molecule.
Rule 2 :- Find out all the substituents present on the carbon chain. It can be any- from methyl to any alcohol substituent.
Rule 3 :- Start numbering the parent chain from the end such that the substituent gets the lowest number. This is called the lowest locant rule.
Rule 4 :- If the substituent occurs more than one time, then the prefix di, tri or tetra is being used with the location of the carbon on which it is present.
Rule 5 :- If more than one substituents are present and they are different. So, these will be named in alphabetical order.
In the given compound, hydroxy group is given at position , there is keto group at position , carbon chain consists of carbon atoms, hence, it is heptane.
-Hydroxyheptan-- One is the correct IUPAC name.