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FAQs on Optical active - Additional Documents & Tests for IIT JAM

1. What is optical activity in the context of IIT JAM?
Ans. Optical activity refers to the ability of certain compounds to rotate the plane of polarization of plane-polarized light. In the context of IIT JAM, it is a topic covered in physical chemistry that deals with the understanding and analysis of the behavior of such compounds and their optical properties.
2. How is optical activity measured in IIT JAM?
Ans. Optical activity is measured by using a polarimeter, which is an instrument that determines the extent of rotation of the plane of polarization caused by a specific compound. The angle of rotation is measured and can be used to determine the concentration and specific rotation of the compound.
3. What are chiral molecules and their significance in optical activity for IIT JAM?
Ans. Chiral molecules are compounds that are non-superimposable on their mirror images. These molecules are optically active and exhibit optical activity. In the context of IIT JAM, understanding the concept of chirality and its significance is crucial as it forms the basis for studying optical activity and the behavior of chiral compounds.
4. How can one determine the enantiomeric excess in optical activity for IIT JAM?
Ans. Enantiomeric excess (ee) is a measure of the excess of one enantiomer over the other in a mixture. In optical activity, it can be determined by comparing the observed rotation with the theoretical rotation of a pure enantiomer. By using the formula, ee = (observed rotation - theoretical rotation) / theoretical rotation, the enantiomeric excess can be calculated.
5. What are some applications of optical activity in IIT JAM?
Ans. Optical activity has various applications in IIT JAM, including the analysis and characterization of chiral compounds, determination of enantiomeric purity in pharmaceuticals, identification of unknown compounds, and understanding the stereochemistry of organic reactions. Optical activity also plays a significant role in fields such as chemical synthesis, drug development, and biochemistry.
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