Compound that gives positive Fehling's solution test is : 

1. Sucrose

2. Glucose

3. Fat

4. Protein

Subtopic:  Carbohydrates - Classification & D-L configuration |
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Which of the following is the sweetest sugar?

1. Sucrose

2. Glucose

3. Fructose

4. Maltose

Subtopic:  Carbohydrates - Classification & D-L configuration |
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a-D-(+)-glucose and b-D-(+)-glucose are

1. Anomers

2. Epimers

3. Enantiomers

4. Geometrical isomers

Subtopic:  Carbohydrates - Classification & D-L configuration |
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The couplings between base units of DNA is through : 

1. Hydrogen bonding

2. Electrostatic bonding

3. Covalent bonding

4. Van der waal's forces

Subtopic:   DNA, RNA & Metal Ions |
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The segment of DNA which acts as the instrumental manual for the synthesis of the protein is 

1. nucleotide

2. ribose

3. gene

4. nucleoside

Subtopic:   DNA, RNA & Metal Ions |
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Which of the following structures represents the peptide chain ?

1. 

2. 

3. 

4. 

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
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On hydrolysis of starch, we finally get

1. glucose

2. fructose

3. Maltose

4. Both 1 and 3

Subtopic:  Carbohydrates - Classification & D-L configuration |
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The correct option about the presence of  H-bond in nucleotides is: 

1. A-T, G-C

2. A-G, T-C

3. G-T, A-C

4. A-A, T-T

Subtopic:   DNA, RNA & Metal Ions |
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The helical structure of proteins is established by

1. dipeptide bonds

2. hydrogen bonds

3. ether bonds

4. peptide bonds

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
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The a-D-glucose and b-D-glucose differ from each other due to difference in carbon atom with respect to its

1. conformation

2. configuration

3. number of OH-groups

4. size of hemiacetal ring

Subtopic:  Carbohydrates - Classification & D-L configuration |
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