Presence of which of the following in blood \ urine cannot be detected by Benedict's test or Fehling's test ?

Sucrose

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Fructose

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Glucose

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Gatactose

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Solution

The correct option is A Sucrose
Sucrose is a non reducing sugar. Therefore, it's presence in blood or urine sample cannot be detected by Benedict's test or Fehling's test.
So, the correct answer is option 'Sucrose'.

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