The human body does not produce

1. DNA

2. vitamins

3. hormones

4. enzymes

Subtopic:  Vitamins, Hormones & Enzymes |
 87%
From NCERT
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Glucose molecule reacts with 'X' number of molecules of phenylhydrazine to yield

osazone. The value of 'X' is

1. four

2. one

3. two

4. three

Subtopic:  Carbohydrates - Classification & D-L configuration |
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RNA and DNA are chiral molecules, their chirality is due to

1. L-sugar component

2. chiral bases

3. chiral phosphate ester units

4. D-sugar-component

Subtopic:   DNA, RNA & Metal Ions |
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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 |
 92%
From NCERT
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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 |
 73%
From NCERT
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Among the following  non-reducing sugar is : 

(1) Glucose

(2) Fructose

(3) Sucrose

(4) Galactose

Subtopic:  Carbohydrates - Classification & D-L configuration |
 88%
From NCERT
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When glucose is reacted with phenyl hydrazine then osazone is formed. In this reaction how many phenyl hydrazine molecules are used ?

1.  1

2.  2

3.  3

4.  4

Subtopic:  Carbohydrates - Classification & D-L configuration |
 78%
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Sucrose on treatment with conc. HCl produces:-

(1) Glucose

(2) Fructose

(3) Glucose + Fructose

(4) Maltose

Subtopic:  Carbohydrates - Classification & D-L configuration |
 89%
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The above process in which a and b form remain in equilibrium with acyclic form and a change in optical rotation is observed which is called as–

(1) Mutarotation

(2) Epimerisation

(3) Condensation

(4) Inversion

Subtopic:  Carbohydrates - Classification & D-L configuration |
 68%
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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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