1. Tardigrade
  2. Question
  3. Chemistry
  4. Which one of the following is NOT correct for monosaccharides? 1. They are optically active polyhydroxy carbonyl compounds 2. Fructose is ketose sugar and hence it does not give red precipitate with Fehling solution 3. α -D(+) glucose and β -D(+) glucose are anomers 4. Glucose and mannose are anomers

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Q. Which one of the following is NOT correct for monosaccharides?
$1.$ They are optically active polyhydroxy carbonyl compounds
$2.$ Fructose is ketose sugar and hence it does not give red precipitate with Fehling solution
$3.$ $\alpha $ -D(+) glucose and $\beta $ -D(+) glucose are anomers
$4.$ Glucose and mannose are anomers

NTA AbhyasNTA Abhyas 2020Biomolecules

Solution:

Statement 1. Correct
2. Incorrect- Including fructose all monosaccharides give the fehling's test
3. Correct
4. Incorrect- Glucose & mannose are epimers not anomers.