PPSC Chemistry Part II Organic Chemistry Online Test With Answers

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PPSC Chemistry Part II Organic Chemistry Online Test

Sr. # Questions Answers Choice
1 Which of the following test is not shown by proteins. Xanthoproten test Ninhydrin test Hopkin cole test Muliken Barker test
2 The study of coiled long peptide chains of protein to give a 3 dimensional structure is the study of. Primary structure Secondary structure. Tertiary structure Quaternary structure.
3 Arrangement of peptide chains of protein in spec to form helix stucture is referred to as. Primary structure Secondary structure Tertiary structure Quaternary structure
4 Primary structure of protein refers to Amino acid sequence Arrangement of peptide chains Orientation of amino acids Whether is has a or b helix in space structure.
5 Oxytocin, a pituitary hormone to Amino acid Polypeptide Protein Conjugated protein
6 Sanger's reagent is Carbobenzyloxy chlride Dimethyl amino sulphonyl chloride I-Fluoro -2,4-dinitrobnzene 2,4- Dinitrophenyl hydrazine
7 Albumin is classified as Simple protein Conjugated protein Lipoprotein Derived protein
8 Combination of a -amino acid through which linkages results result in formation of protein Ester linkage Glycosidic linkage Lactum linkage Peptide linkage
9 Hydrolysis of protein gives a -amino acid only b-amino acids only gama amino acid only A mixture of all of these
10 Estimation of nitrogen in proteins is generally arrived out by the method. Duma's method Van Slyke method Kjeldahl's method Carius method
11 a -amino acids when heated alone form Cyclic lactum a-b-unsaturated acid Fatty acids Diketopiperzines
12 Dry distillation of amino acids with barium hydroxide yields. Acids Amines Alcohols Hydroxy acids
13 Which of the following is not a general property of amino acids. They have high m.p. and b.p They are soluble in water Their dipole moments are high They are amorphous solids
14 The isoelectric point of a protein or amino acid to. pH at which it does not have any charge pH at which it does not have not charge and does not migrate in electric field pH at which the concentration of cation is greater than amino pH at which the concentration of anion is greater than cation
15 Glycine reacts with nitrous acid to form Methyl amino Acetic acid Zwitter ion Glycollic acid
16 Select a basic amino acid. Glycine Cystine Alanine Lysine
17 Select an acidic amino acid Lysine Cystine Aspartic acid Aminoacetic acid
18 Which of the following a -amino acid is not capable of exhibiting optical isomerism. Glycine Leucine Arginine Alanine
19 Which of the following is capable of forming zwitter ion. Amino acids Halo acids Hydroxy acids All of these
20 Amino acids have

 Acidic group Basic group Both of these None of these
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