Chemical Properties of Glucose

Q.

Preparation of glycine by Strecker synthesis involves as one of the starting compounds ?

1. Formaldehyde

2. Acetaldehyde

3. Methanol

4. Either (a) or (c)

Q.

Can ketones be oxidized?

Q. In the given reaction
Glucose + n (Phenylhydrazine) $\to$ Osazone
The value of n is:

1. Three
2. Two
3. One
4. Four

Q.

Ribose and 2-deoxyribose can be differentiated by:

1. Fehling’s reagent

2. Osazone formation

3. Tollen’s reagent

4. Barfoed’s reagent

Q. D-(+)-glucose reacts with hydroxyl amine and yield an oxime. The structure of the oxime would be:

1. 
2. 
3. 
4. 

Q. Compound $\left(B\right)$ is:

1. 
2. 
3. 
4. Both $\left(a\right)$ and $\left(b\right)$

Q. Which one of the following compounds will give racemic mixture in $S_{N}1$ reaction?

1. None of the above
2. 
3. 
4. 

Q. Glucose gives silver mirror with Tollen's reagent. It shows the presence of

1. An acidic group
2. An alcoholic group
3. A ketonic group
4. An aldehydic group

Q.

(+) Glucose and (-) fructose can be differentiated by ?

1. Tollens reagent

2. Benedict solution

3. Bromine water

4. None of these

Q.

Biuret test is not given by:

1. Proteins

2. Urea

3. Polypeptide

4. Carbohydrates

Q. Statement I: Glucose gives a reddish-brown precipitate with Fehling's solution.
Statement I: Reaction of glucose with Fehling's solution gives CuO and gluconic acid.
(IIT-JEE, 2007)

1. Statement I is true; Statement II is true; Statement II is the correct explanation of Statement I.
2. Statement I is true; Statement II is true; Statement II is not the correct explanation of Statement I.
3. Statement I is true; Statement II is false
4. Statement I is false; Statement II is true

Q. Observe the following reaction and find out that how many number of reactant stereoisomers can be reduced to optically inactive meso product.

Q. Statement I: Glucose gives a reddish-brown precipitate with Fehling's solution.
Statement I: Reaction of glucose with Fehling's solution gives CuO and gluconic acid.
(IIT-JEE, 2007)

1. Statement I is true; Statement II is true; Statement II is the correct explanation of Statement I.
2. Statement I is true; Statement II is true; Statement II is not the correct explanation of Statement I.
3. Statement I is true; Statement II is false
4. Statement I is false; Statement II is true

Q.

Glucose does not react with:

1. HCN

2. Phenylhydrazine

3. Hydroxylamine

4. Sodium bisulphite

Q. Which one of the following compound will give (d) and (l) form in $S_{N}1$ reaction (as major product)?

1. $C{H}_{3}Cl$
2. 
3. 
4. 

Q.

Which of the following evolves carbon dioxide on oxidation with periodate?

1. 

2. 

3. Both

4. None

Q. Compound $\left(C\right)$ is :

1. 
2. 
3. 
4. All of these

Q.

The reagents which do not react with glucose are

I. Schiff's reagent II. Tollen's reagent III.Fehling's solution IV. NaHSO₃

1. All
2. I & IV
3. I, II, III
4. I, III, IV