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Q.
Match List I with List II [2024]

LIST I LIST II

A. Glucose/ ${NaHSO}_{3}$ / $Δ$ I. Gluconic acid

B. Glucose/ ${HNO}_{3}$ II. No reaction

C. Glucose/ $HI$ / $Δ$ III. $n$ -hexane

D. Glucose/Bromine water IV. Saccharic acid

Choose the correct answer from the options given below:

LIST I	LIST II
A. Glucose/ ${NaHSO}_{3}$ / $Δ$	I. Gluconic acid
B. Glucose/ ${HNO}_{3}$	II. No reaction
C. Glucose/ $HI$ / $Δ$	III. $n$ -hexane
D. Glucose/Bromine water	IV. Saccharic acid

1 A-IV, B-I, C-III, D-II

2 A-I, B-IV, C-III, D-II

3 A-II, B-IV, C-III, D-I

4 A-III, B-II, C-I, D-IV

Ans.
(3)

(A) Despite having the aldehyde group, glucose does not give Schiff’s test and it does not form the hydrogensulphite addition product with ${NaHSO}_{3}$ . This shows glucose exists in cyclic structure.

Note: In question, ${NaHCO}_{3}$ should be replaced by ${NaHSO}_{3}$ .

Solution

Q.
Match List I with List II [2024]

LIST I LIST II

A. Glucose/ ${NaHSO}_{3}$ / $Δ$ I. Gluconic acid

B. Glucose/ ${HNO}_{3}$ II. No reaction

C. Glucose/ $HI$ / $Δ$ III. $n$ -hexane

D. Glucose/Bromine water IV. Saccharic acid

Choose the correct answer from the options given below:

1 A-IV, B-I, C-III, D-II

2 A-I, B-IV, C-III, D-II

3 A-II, B-IV, C-III, D-I

4 A-III, B-II, C-I, D-IV

Ans.
(3)

(A) Despite having the aldehyde group, glucose does not give Schiff’s test and it does not form the hydrogensulphite addition product with ${NaHSO}_{3}$ . This shows glucose exists in cyclic structure.

Note: In question, ${NaHCO}_{3}$ should be replaced by ${NaHSO}_{3}$ .

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Solution

Q. Match List I with List II [2024] LIST I LIST II A. Glucose/NaHSO3/Δ I. Gluconic acid B. Glucose/HNO3 II. No reaction C. Glucose/HI/Δ III. n-hexane D. Glucose/Bromine water IV. Saccharic acid Choose the correct answer from the options given below:

1 A-IV, B-I, C-III, D-II

2 A-I, B-IV, C-III, D-II

3 A-II, B-IV, C-III, D-I

4 A-III, B-II, C-I, D-IV

Ans. (3) (A) Despite having the aldehyde group, glucose does not give Schiff’s test and it does not form the hydrogensulphite addition product with NaHSO3. This shows glucose exists in cyclic structure. Note: In question, NaHCO3 should be replaced by NaHSO3.

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Q.
Match List I with List II [2024]

LIST I LIST II

A. Glucose/ ${NaHSO}_{3}$ / $Δ$ I. Gluconic acid

B. Glucose/ ${HNO}_{3}$ II. No reaction

C. Glucose/ $HI$ / $Δ$ III. $n$ -hexane

D. Glucose/Bromine water IV. Saccharic acid

Choose the correct answer from the options given below:

Ans.
(3)

(A) Despite having the aldehyde group, glucose does not give Schiff’s test and it does not form the hydrogensulphite addition product with ${NaHSO}_{3}$ . This shows glucose exists in cyclic structure.

Note: In question, ${NaHCO}_{3}$ should be replaced by ${NaHSO}_{3}$ .