324665
Which of the following forms n-hexane when reduced with red \(\mathrm{\mathrm{P}+\mathrm{HI}}\) ?
1 Glucose
2 Fructose
3 Galactose
4 All of these
Explanation:
Aldohexose and ketohexose undergo reduction in presence of red \(\mathrm{\mathrm{P}}\) and \(\mathrm{\mathrm{HI}}\) gives \(\mathrm{\mathrm{n-}}\) hexane.
CHXII14:BIOMOLECULES
324666
When glucose reacts with bromine water, the main product is
1 Acetic acid
2 Saccharic acid
3 Glyceraldyhyde
4 Gluconic acid
Explanation:
Glucose reacts with bromine water forms gluconic acid, \(\mathrm{\mathrm{HOOC}-(\mathrm{CHOH})_{4}-\mathrm{CH}_{2} \mathrm{OH}}\)
CHXII14:BIOMOLECULES
324667
Glucose contains in addition to aldehyde group
1 one secondary \(\mathrm{\mathrm{OH}}\) and four primary \(\mathrm{\mathrm{OH}}\) groups
2 one primary \(\mathrm{\mathrm{OH}}\) and four secondary \(\mathrm{\mathrm{OH}}\) groups
3 two primary \(\mathrm{\mathrm{OH}}\) and three secondary \(\mathrm{\mathrm{OH}}\) groups
4 three primary \(\mathrm{\mathrm{OH}}\) and two secondary \(\mathrm{\mathrm{OH}}\) groups.
Explanation:
KCET - 2006
CHXII14:BIOMOLECULES
324668
Glucose and gluconic acid on oxidation with dilute nitric acid forms saccharic acid. This reaction confirms that glucose contains.
1 Four primary alcoholic groups
2 Two primary alcoholic groups
3 One primary alcoholic group
4 Five hydroxyl groups.
Explanation:
This confirms the presence of one primary alcoholic group \(\left(-\mathrm{CH}_{2} \mathrm{OH}\right)\) in glucose.
324665
Which of the following forms n-hexane when reduced with red \(\mathrm{\mathrm{P}+\mathrm{HI}}\) ?
1 Glucose
2 Fructose
3 Galactose
4 All of these
Explanation:
Aldohexose and ketohexose undergo reduction in presence of red \(\mathrm{\mathrm{P}}\) and \(\mathrm{\mathrm{HI}}\) gives \(\mathrm{\mathrm{n-}}\) hexane.
CHXII14:BIOMOLECULES
324666
When glucose reacts with bromine water, the main product is
1 Acetic acid
2 Saccharic acid
3 Glyceraldyhyde
4 Gluconic acid
Explanation:
Glucose reacts with bromine water forms gluconic acid, \(\mathrm{\mathrm{HOOC}-(\mathrm{CHOH})_{4}-\mathrm{CH}_{2} \mathrm{OH}}\)
CHXII14:BIOMOLECULES
324667
Glucose contains in addition to aldehyde group
1 one secondary \(\mathrm{\mathrm{OH}}\) and four primary \(\mathrm{\mathrm{OH}}\) groups
2 one primary \(\mathrm{\mathrm{OH}}\) and four secondary \(\mathrm{\mathrm{OH}}\) groups
3 two primary \(\mathrm{\mathrm{OH}}\) and three secondary \(\mathrm{\mathrm{OH}}\) groups
4 three primary \(\mathrm{\mathrm{OH}}\) and two secondary \(\mathrm{\mathrm{OH}}\) groups.
Explanation:
KCET - 2006
CHXII14:BIOMOLECULES
324668
Glucose and gluconic acid on oxidation with dilute nitric acid forms saccharic acid. This reaction confirms that glucose contains.
1 Four primary alcoholic groups
2 Two primary alcoholic groups
3 One primary alcoholic group
4 Five hydroxyl groups.
Explanation:
This confirms the presence of one primary alcoholic group \(\left(-\mathrm{CH}_{2} \mathrm{OH}\right)\) in glucose.
324665
Which of the following forms n-hexane when reduced with red \(\mathrm{\mathrm{P}+\mathrm{HI}}\) ?
1 Glucose
2 Fructose
3 Galactose
4 All of these
Explanation:
Aldohexose and ketohexose undergo reduction in presence of red \(\mathrm{\mathrm{P}}\) and \(\mathrm{\mathrm{HI}}\) gives \(\mathrm{\mathrm{n-}}\) hexane.
CHXII14:BIOMOLECULES
324666
When glucose reacts with bromine water, the main product is
1 Acetic acid
2 Saccharic acid
3 Glyceraldyhyde
4 Gluconic acid
Explanation:
Glucose reacts with bromine water forms gluconic acid, \(\mathrm{\mathrm{HOOC}-(\mathrm{CHOH})_{4}-\mathrm{CH}_{2} \mathrm{OH}}\)
CHXII14:BIOMOLECULES
324667
Glucose contains in addition to aldehyde group
1 one secondary \(\mathrm{\mathrm{OH}}\) and four primary \(\mathrm{\mathrm{OH}}\) groups
2 one primary \(\mathrm{\mathrm{OH}}\) and four secondary \(\mathrm{\mathrm{OH}}\) groups
3 two primary \(\mathrm{\mathrm{OH}}\) and three secondary \(\mathrm{\mathrm{OH}}\) groups
4 three primary \(\mathrm{\mathrm{OH}}\) and two secondary \(\mathrm{\mathrm{OH}}\) groups.
Explanation:
KCET - 2006
CHXII14:BIOMOLECULES
324668
Glucose and gluconic acid on oxidation with dilute nitric acid forms saccharic acid. This reaction confirms that glucose contains.
1 Four primary alcoholic groups
2 Two primary alcoholic groups
3 One primary alcoholic group
4 Five hydroxyl groups.
Explanation:
This confirms the presence of one primary alcoholic group \(\left(-\mathrm{CH}_{2} \mathrm{OH}\right)\) in glucose.
324665
Which of the following forms n-hexane when reduced with red \(\mathrm{\mathrm{P}+\mathrm{HI}}\) ?
1 Glucose
2 Fructose
3 Galactose
4 All of these
Explanation:
Aldohexose and ketohexose undergo reduction in presence of red \(\mathrm{\mathrm{P}}\) and \(\mathrm{\mathrm{HI}}\) gives \(\mathrm{\mathrm{n-}}\) hexane.
CHXII14:BIOMOLECULES
324666
When glucose reacts with bromine water, the main product is
1 Acetic acid
2 Saccharic acid
3 Glyceraldyhyde
4 Gluconic acid
Explanation:
Glucose reacts with bromine water forms gluconic acid, \(\mathrm{\mathrm{HOOC}-(\mathrm{CHOH})_{4}-\mathrm{CH}_{2} \mathrm{OH}}\)
CHXII14:BIOMOLECULES
324667
Glucose contains in addition to aldehyde group
1 one secondary \(\mathrm{\mathrm{OH}}\) and four primary \(\mathrm{\mathrm{OH}}\) groups
2 one primary \(\mathrm{\mathrm{OH}}\) and four secondary \(\mathrm{\mathrm{OH}}\) groups
3 two primary \(\mathrm{\mathrm{OH}}\) and three secondary \(\mathrm{\mathrm{OH}}\) groups
4 three primary \(\mathrm{\mathrm{OH}}\) and two secondary \(\mathrm{\mathrm{OH}}\) groups.
Explanation:
KCET - 2006
CHXII14:BIOMOLECULES
324668
Glucose and gluconic acid on oxidation with dilute nitric acid forms saccharic acid. This reaction confirms that glucose contains.
1 Four primary alcoholic groups
2 Two primary alcoholic groups
3 One primary alcoholic group
4 Five hydroxyl groups.
Explanation:
This confirms the presence of one primary alcoholic group \(\left(-\mathrm{CH}_{2} \mathrm{OH}\right)\) in glucose.
