324678
Which reagent among the following is used to confirm presence of aldehydic carbonyl group in glucose?
1 Dilute nitric acid
2 Bromine water
3 Acetic anhydride
4 Hydroxylamine
Explanation:
Bromine water is used to confirm presence of aldehydic carbonyl group in glucose.
Glucose gets oxidised to six carbon carboxylic acid (gluconic acid) on reaction with a mild oxidising agent ( \(\mathrm{\mathrm{Br}_{2}}\) water).
CHXII14:BIOMOLECULES
324679
Which among the following compounds is obtained when glucose react with hydrogen cyanide?
1 Gluconic acid
2 Glucose cyanohydrin
3 Saccharic acid
4 n-hexane
Explanation:
Glucose react with hydrogen cyanide to form glucose cyanohydrin. \({\text{HOC}}{{\text{H}}_{\text{2}}}{\text{ - }}\mathop {{{({\text{CHOH}})}_{\text{4}}}}\limits_{{\text{ Glucose }}} {\text{ - CHO + HCN}} \to \) This reaction confirm the presence of a carboxyl group in glucose.
MHTCET - 2020
CHXII14:BIOMOLECULES
324680
Name the product which is formed by the oxidation of glucose and gluconic acid with nitric acid.
1 Rhamnose
2 Saccharic acid
3 Citric acid
4 Oxalic acid
Explanation:
Glucose and gluconic acid, both on the oxidation yield a dicarboxylic acid, saccharic acid. This indicates the presence of primary alcohol \(\mathrm{-\left(\mathrm{CH}_{2} \mathrm{OH}\right)}\) group in glucose
CHXII14:BIOMOLECULES
324681
The spatial arrangement of different \(\mathrm{\mathrm{OH}}\) groups in the molecules is given. Choose the option with correct names for I, II and III.
1 I \(\mathrm{\rightarrow}\) Gluconic acid; II \(\mathrm{\rightarrow}\) Glucose; III \(\mathrm{\rightarrow}\) Saccharic acid
2 I \(\mathrm{\rightarrow}\) Saccharic acid; II \(\mathrm{\rightarrow}\) Glucose; III \(\mathrm{\rightarrow}\) Guconic acid
3 I \(\mathrm{\rightarrow}\) Glucose; II \(\mathrm{\rightarrow}\) Gluconic acid; III \(\mathrm{\rightarrow}\) Saccharic acid
4 I \(\mathrm{\rightarrow}\) Glucose; II \(\mathrm{\rightarrow}\) Saccharic acid; III \(\mathrm{\rightarrow}\) Gluconic acid.
324678
Which reagent among the following is used to confirm presence of aldehydic carbonyl group in glucose?
1 Dilute nitric acid
2 Bromine water
3 Acetic anhydride
4 Hydroxylamine
Explanation:
Bromine water is used to confirm presence of aldehydic carbonyl group in glucose.
Glucose gets oxidised to six carbon carboxylic acid (gluconic acid) on reaction with a mild oxidising agent ( \(\mathrm{\mathrm{Br}_{2}}\) water).
CHXII14:BIOMOLECULES
324679
Which among the following compounds is obtained when glucose react with hydrogen cyanide?
1 Gluconic acid
2 Glucose cyanohydrin
3 Saccharic acid
4 n-hexane
Explanation:
Glucose react with hydrogen cyanide to form glucose cyanohydrin. \({\text{HOC}}{{\text{H}}_{\text{2}}}{\text{ - }}\mathop {{{({\text{CHOH}})}_{\text{4}}}}\limits_{{\text{ Glucose }}} {\text{ - CHO + HCN}} \to \) This reaction confirm the presence of a carboxyl group in glucose.
MHTCET - 2020
CHXII14:BIOMOLECULES
324680
Name the product which is formed by the oxidation of glucose and gluconic acid with nitric acid.
1 Rhamnose
2 Saccharic acid
3 Citric acid
4 Oxalic acid
Explanation:
Glucose and gluconic acid, both on the oxidation yield a dicarboxylic acid, saccharic acid. This indicates the presence of primary alcohol \(\mathrm{-\left(\mathrm{CH}_{2} \mathrm{OH}\right)}\) group in glucose
CHXII14:BIOMOLECULES
324681
The spatial arrangement of different \(\mathrm{\mathrm{OH}}\) groups in the molecules is given. Choose the option with correct names for I, II and III.
1 I \(\mathrm{\rightarrow}\) Gluconic acid; II \(\mathrm{\rightarrow}\) Glucose; III \(\mathrm{\rightarrow}\) Saccharic acid
2 I \(\mathrm{\rightarrow}\) Saccharic acid; II \(\mathrm{\rightarrow}\) Glucose; III \(\mathrm{\rightarrow}\) Guconic acid
3 I \(\mathrm{\rightarrow}\) Glucose; II \(\mathrm{\rightarrow}\) Gluconic acid; III \(\mathrm{\rightarrow}\) Saccharic acid
4 I \(\mathrm{\rightarrow}\) Glucose; II \(\mathrm{\rightarrow}\) Saccharic acid; III \(\mathrm{\rightarrow}\) Gluconic acid.
324678
Which reagent among the following is used to confirm presence of aldehydic carbonyl group in glucose?
1 Dilute nitric acid
2 Bromine water
3 Acetic anhydride
4 Hydroxylamine
Explanation:
Bromine water is used to confirm presence of aldehydic carbonyl group in glucose.
Glucose gets oxidised to six carbon carboxylic acid (gluconic acid) on reaction with a mild oxidising agent ( \(\mathrm{\mathrm{Br}_{2}}\) water).
CHXII14:BIOMOLECULES
324679
Which among the following compounds is obtained when glucose react with hydrogen cyanide?
1 Gluconic acid
2 Glucose cyanohydrin
3 Saccharic acid
4 n-hexane
Explanation:
Glucose react with hydrogen cyanide to form glucose cyanohydrin. \({\text{HOC}}{{\text{H}}_{\text{2}}}{\text{ - }}\mathop {{{({\text{CHOH}})}_{\text{4}}}}\limits_{{\text{ Glucose }}} {\text{ - CHO + HCN}} \to \) This reaction confirm the presence of a carboxyl group in glucose.
MHTCET - 2020
CHXII14:BIOMOLECULES
324680
Name the product which is formed by the oxidation of glucose and gluconic acid with nitric acid.
1 Rhamnose
2 Saccharic acid
3 Citric acid
4 Oxalic acid
Explanation:
Glucose and gluconic acid, both on the oxidation yield a dicarboxylic acid, saccharic acid. This indicates the presence of primary alcohol \(\mathrm{-\left(\mathrm{CH}_{2} \mathrm{OH}\right)}\) group in glucose
CHXII14:BIOMOLECULES
324681
The spatial arrangement of different \(\mathrm{\mathrm{OH}}\) groups in the molecules is given. Choose the option with correct names for I, II and III.
1 I \(\mathrm{\rightarrow}\) Gluconic acid; II \(\mathrm{\rightarrow}\) Glucose; III \(\mathrm{\rightarrow}\) Saccharic acid
2 I \(\mathrm{\rightarrow}\) Saccharic acid; II \(\mathrm{\rightarrow}\) Glucose; III \(\mathrm{\rightarrow}\) Guconic acid
3 I \(\mathrm{\rightarrow}\) Glucose; II \(\mathrm{\rightarrow}\) Gluconic acid; III \(\mathrm{\rightarrow}\) Saccharic acid
4 I \(\mathrm{\rightarrow}\) Glucose; II \(\mathrm{\rightarrow}\) Saccharic acid; III \(\mathrm{\rightarrow}\) Gluconic acid.
324678
Which reagent among the following is used to confirm presence of aldehydic carbonyl group in glucose?
1 Dilute nitric acid
2 Bromine water
3 Acetic anhydride
4 Hydroxylamine
Explanation:
Bromine water is used to confirm presence of aldehydic carbonyl group in glucose.
Glucose gets oxidised to six carbon carboxylic acid (gluconic acid) on reaction with a mild oxidising agent ( \(\mathrm{\mathrm{Br}_{2}}\) water).
CHXII14:BIOMOLECULES
324679
Which among the following compounds is obtained when glucose react with hydrogen cyanide?
1 Gluconic acid
2 Glucose cyanohydrin
3 Saccharic acid
4 n-hexane
Explanation:
Glucose react with hydrogen cyanide to form glucose cyanohydrin. \({\text{HOC}}{{\text{H}}_{\text{2}}}{\text{ - }}\mathop {{{({\text{CHOH}})}_{\text{4}}}}\limits_{{\text{ Glucose }}} {\text{ - CHO + HCN}} \to \) This reaction confirm the presence of a carboxyl group in glucose.
MHTCET - 2020
CHXII14:BIOMOLECULES
324680
Name the product which is formed by the oxidation of glucose and gluconic acid with nitric acid.
1 Rhamnose
2 Saccharic acid
3 Citric acid
4 Oxalic acid
Explanation:
Glucose and gluconic acid, both on the oxidation yield a dicarboxylic acid, saccharic acid. This indicates the presence of primary alcohol \(\mathrm{-\left(\mathrm{CH}_{2} \mathrm{OH}\right)}\) group in glucose
CHXII14:BIOMOLECULES
324681
The spatial arrangement of different \(\mathrm{\mathrm{OH}}\) groups in the molecules is given. Choose the option with correct names for I, II and III.
1 I \(\mathrm{\rightarrow}\) Gluconic acid; II \(\mathrm{\rightarrow}\) Glucose; III \(\mathrm{\rightarrow}\) Saccharic acid
2 I \(\mathrm{\rightarrow}\) Saccharic acid; II \(\mathrm{\rightarrow}\) Glucose; III \(\mathrm{\rightarrow}\) Guconic acid
3 I \(\mathrm{\rightarrow}\) Glucose; II \(\mathrm{\rightarrow}\) Gluconic acid; III \(\mathrm{\rightarrow}\) Saccharic acid
4 I \(\mathrm{\rightarrow}\) Glucose; II \(\mathrm{\rightarrow}\) Saccharic acid; III \(\mathrm{\rightarrow}\) Gluconic acid.
