Hello,

There is no Korean subject in CBSE class 11. The class 11 CBSE subjects are

• Accountancy
• Business Studies
• Economics
• Biology
• Chemistry
• Mathematics
• Physics
• Biotechnology Syllabus
• Computer Science
• Entrepreneurship
• Informatics Practices
• Geography
• History
• Home Science
• Political Science
• Psychology
• Sociology
• English
• Hindi
• Panjabi
• Sanskrit
• Carnatic Music
• Hindustani Music
• Dance
• Engineering Graphics
• Legal studies

Check the link below to get the syllabus of all the subjects

https://www.google.com/amp/s/school.careers360.com/articles/cbse-syllabus-for-class-11/amp

Hii!
No, CBSE currently does not provide Korean as a subject under its list of language subjects. The subjects in language that CBSE offers in class 11th and 12th are - Hindi, English, Sanskrit, Spanish, bhutia, kashmiri, Japanese, bodo, nepali, limboo, German, Russian, Tibetan, Arabic, Assamese, Odia, Malayalam, gujrati, marathi, sindhi, Tamil, Telugu, Bengali, etc., Korean may be included in near future.
Hope this helps.
Good luck!