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 |
 77%
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At iso-electric point:

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

(b) Net charge is zero.

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

(d) All of the above

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 87%
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Which amino acid does not contain chiral centre ?
(1) Valine
(2) Leucine
(3) Glycine
(4) Iso-leucine

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 84%
From NCERT
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Which of the following pair gives same phenyl osazone ?

(a) D-Glucose and D-Allose
(b) D-Glucose and D-Alfrose
(c) D-Glucose and D-Mannose
(d) D-Glucose and D-Talose

Subtopic:  Polysaccharides & their Importance |
 82%
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Proteins mainly contain:

(1) C, H, O and N

(2) Only C and H

(3) C, H and O

(4) N and H

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 91%
From NCERT
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The main structural feature of protein is:

(1) The ester linkage

(2) The ether linkage

(3) The peptide linkage

(4) All of these

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 88%
From NCERT
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Keratin, a structural protein is present in:
(a) hair
(b) skin
(c) wool
(d) all of these

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 73%
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Blood protein is ?
(a)albumin
(b)haemoglobin
(c)both (a) and (b)
(d)none of these

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 78%
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A vitamin which plays a vital role in the coagulating property of blood is:-

(1) Vitamin A
(2) Vitamin D
(3) Vitamin B
(4) Vitamin K

Subtopic:  Vitamins, Hormones & Enzymes |
 93%
From NCERT
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Which is not a poison for enzymes?

(a) CN-                       (b) Fe3+

(c) Pb2+                     (d) AsO43-

Subtopic:  Vitamins, Hormones & Enzymes |
 73%
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