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Animesh Raj posted an Question
November 23, 2020 • 04:18 am 10 points
  • IIT JAM
  • Chemistry (CY)

What is the difference between l and d and (+) and (-) sign in compounds?

what is the difference between l and d and (+) and (-) sign in compounds?

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  • Yashasvi yadav best-answer

    small d and l are (+)clockwise and (-)anticlockwise respectively captital D and L as given below .

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    Animesh raj

    but there is a compound.... L (+) alanine which is dextrorotatory.

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    that is 'L' not 'l'.... capital L represent the relative configuration of molecule...

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    D or L represent relative configuration of molecule whereas d and l represents optical activity of the molecule..

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    got it Animesh?

  • Rahul

    symbol 'd' or (+) is used for dexterorotatory optical isomer whereas (-) or 'l' is used to represent laeveorotatory optical isomer....a (+) optical isomer rotates plane polarised light in clockwise direction of the main axis of vibrating plane of plane polarised light.... whereas a (-) or 'l' rotates the same in anticlockwise direction....

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