Which of the following aldohexoses give the same osazone derivative ?

(1) I and IV

(2) I and III

(3) II and III

(4) III and IV

Subtopic:  Carbohydrates - Classification & D-L configuration |
 54%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which of the following is a non–reducing sugar ?

1.  
2.
3.
4.
Subtopic:  Carbohydrates - Classification & D-L configuration |
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

How many moles of acetic anhydride (Ac2O) is needed to react completely with tartaric acid, ribose, and glucose respectively?

(1) 2,4, 5

(2) 2, 3, 4

(3) 4, 5, 6

(4) 4, 5, 5

Subtopic:   DNA, RNA & Metal Ions |
 52%
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Glucose on reduction with Na/Hg and water gives-

1. Sorbitol

2. Fructose

3. Saccharic acid

4. Gluconic acid

Subtopic:  Carbohydrates - Classification & D-L configuration |
 53%
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NEET 2023 - Target Batch - Aryan Raj Singh
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What will be product when glycine, is heated–

(1)  
(2)
(3)
(4)
Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
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NEET 2023 - Target Batch - Aryan Raj Singh
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             O
             ll
NH2-CH-C-NH-CH2-CO2H
         l
       CH3

Identify the amino acid obtained by hydrolysis of the above compound :-

1. Glycine

2. Alanine

3. Both (1) and (2)

4. None of the above

 

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 69%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

At iso-electric point:

(1) conc. of cation is equal to conc of anion

(2) Net charge is zero.

(3) Maximum conc. of di-polar ion (Zwitterion) will be present

(4) All of the above

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 81%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which of the following amino acid has the lowest iso-electric point?

1. Glycine

2. Alanine

3. Aspartic acid

4. Lysine

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
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NEET 2023 - Target Batch - Aryan Raj Singh
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Find iso-electric point of given amino acid

        CH3CHCO2H
           |
         NH3pKa = 2.2              pKb = 4.4

(1) 3.3

(2) 5.9

(3) 9.6

(4) 11.8

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
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NEET 2023 - Target Batch - Aryan Raj Singh
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Find an iso-electric point of the given amino acid

1. 5.5

2. 6.5

3. 3

4. 5

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
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NEET 2023 - Target Batch - Aryan Raj Singh
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