Q.

Which one of the following Fischer projection formula represents R - alanine ?

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a

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b

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c

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d

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answer is B.

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Detailed Solution

Only option(B) represents R-configuration.

All the remaining represents S-configuration.

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The order of priority according to atomic no. ranking is in anti clock wise direction but, least priority group is on horizontal line. Hence it is  R - alanine.

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