Glucose
Trending Questions
Q.
What is the empirical formula for glucose?
Q. What do you mean by invert sugar
Q. D(+) - glucose reacts with hydroxyl amine and yields an oxime. The structure of the oxime would be
Q.
Which of the following carbohydrates are branched polymer of glucose?
(a) Amylose (b) Amulopectin
(c) Cellulose (d) Glycogen
Q.
Glycogen on hydrolysis gives -
lactose and glucose
only glucose
glucose and fructose
glucose and maltose
Q.
The number of chiral carbons in Pyranose form of glucose is
- 4
- 5
- 3
- 6
Q. Identify the product “Z” in the following series of reactions:
- Hexanoic acid
- α-methyl caproic acid
- Heptanoic acid
- None of these
Q. The structure of D-glucose is as follows:
a. Draw the structure of L-glucose.
b. Give the reaction of L-glucose with Tollens reagent.
(IIT-JEE, 2004)
a. Draw the structure of L-glucose.
b. Give the reaction of L-glucose with Tollens reagent.
(IIT-JEE, 2004)
Q. The empirical formula for glucose is:
- CH2O
- C2H4O2
- CHO
- C2HO2
Q. Explain in detail the mechanism (along with the role of catalyst) of Wacker process and oxo-process for the synthesis of aldehydes and ketones
Q.
The molecular formula and empirical formula are the same for benzene
- True
- False
Q. Starch is a polymer of
- Glucose
- Fructose
- Both (a) and (b)
- None of these
Q. Glucose on reduction with Na/Hg and water gives:
- Sorbitol
- Fructose
- Saccharic acid
- Gluconic acid
Q. 17. which is not formed in hoffmann degradation ?? 1)RNCO 2)_RNC 3)_RCONHBr
Q. Identify the saccharide from the Haworth projection shown below
- Lactose
- Maltose
- Sucrose
- Glucose
Q. Glucose on reduction with Na/Hg and water gives:
- Sorbitol
- Fructose
- Saccharic acid
- Gluconic acid
Q. How does equilibria involving CO molecules and hemoglobin account for the toxicity of CO. explain in detail.
Q. Classify the isomers of alcohols in C5H12O as primary, secondary and teritiary alcohols.
Q. The following compound can be called as
- D-(+)-glucose
- D-(-)-glucose
- L-(-)-glucose
- L-(+)-glucose
Q.
What is an empirical formula?
Q. Sucrose is a non reducing sugar
Q. Match List - I with List -II
Choose the correct answer from the options given below:
List-I | List-II |
a. Sucrose | i. β-D-Galactose and β-D-Glucose |
b. Lactose | ii. α-D-Glucose and β-D-Fructose |
c. Maltose | iii. α-D- Glucose and α-D-Glucose |
Choose the correct answer from the options given below:
- (a)-(iii), (b)-(ii), (c)-(i)
- (a)-(iii), (b)-(i), (c)-(ii)
- (a)-(i), (b)-(iii), (c)-(ii)
- (a)-(ii), (b)-(i), (c)-(iii)
Q.
The number of chiral carbons in Pyranose form of glucose is
3
4
6
5
Q. Identify the product “Z” in the following series of reactions:
- Hexanoic acid
- Heptanoic acid
- α-methyl caproic acid
- None of these
Q. Which of the following treatment will convert starch directly into glucose?
- Heating with dilute H2SO4
- Fermentation by diastase
- Fermentation by zymase
- Heating with dilute NaOH
Q. For 'invert sugar', the correct statement(s) is/are:
(Given: specific rotations of (+)-sucrose, (+)-maltose, L-(-)-glucose and L-(+)-fructose in aqueous solution are +66∘, +140∘, −52∘and+92∘, respectively)
(Given: specific rotations of (+)-sucrose, (+)-maltose, L-(-)-glucose and L-(+)-fructose in aqueous solution are +66∘, +140∘, −52∘and+92∘, respectively)
- ‘invert sugar’ is prepared by acid catalyzed hydrolysis of maltose
- ‘invert sugar’ is an equimolar mixture of D-(+)-glucose and D-(–)-fructose
- specific rotation of ‘invert sugar’ is −20∘
- On reaction with Br2 water, ‘invert sugar’ forms saccharic acid as one of the products
Q. Find the number of molecule(s) which do not exist
NCl3, PCl3, PCl5, NCl5, PF2, OF4, OF6
NCl3, PCl3, PCl5, NCl5, PF2, OF4, OF6
Q. Match the following functional group test for glucose
- 6 Cs linked linearly
- Presence of −CHO group
- Presence of −CH2OH group
- Presence of 5−OHgroup