Hello,
You can get the SOF NSO SET-B Question Paper with Answer Key from the Careers360 website. This website also provides previous year question papers, syllabus, important dates, exam patterns, marking schemes, question paper along with answer keys, exam paper analysis, preparation tips and many more.
follow the LINK: https://school.careers360.com/articles/nso-answer-key
I hope this answer helps you!
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