IIT JAM
   Top Resources
Pravansu Panda posted an Question
September 23, 2021 • 04:45 am 30 points
  • IIT JAM
  • Chemistry (CY)

(d) 16 73. the enantiomeric excess and observed specific rotation of a mixture containing 6 g of (+)-2-butanol and 4 (g) of ()-2-butanol are respectively (if th

(d) 16 73. The enantiomeric excess and observed specific rotation of a mixture containing 6 g of (+)-2-butanol and 4 (g) of ()-2-butanol are respectively (If the specific rotation of enantiomerically pure (+)-2-butanol is +13.5 units) (a) 80%, +2.7 unit (c) 20%o, +2.7 unit (b) 20%,-27 unit (d) 80%,-27 unit

1 Answer(s) Answer Now
  • 0 Likes
  • 2 Comments
  • 0 Shares
  • Suman Kumar Best Answer

    As the difference is 2g so the optical rotation is due to excess 2g of (+) compound. 2g/10g which is equal to 20%. Now 100% + compound has a specific rotation is 13.5 unit for 20% calculation just take 20% of 13.5 which is equal to 2.7 unit. Option C is correct.

    eduncle-logo-app

    Kindly accept my answer.

whatsapp-btn

Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

  • Updated Syllabus, Paper Pattern & Full Exam Details
  • Sample Theory of Most Important Topic
  • Model Test Paper with Detailed Solutions
  • Last 5 Years Question Papers & Answers

Sign Up to Download FREE Study Material Worth Rs. 500/-