MDCAT Chemistry Chapter 19 Macromolecules Online Test With Answers

MDCAT Chemistry Chapter 19 Macromolecules Online Test

Sr. # Questions Answers Choice
1 Chloroethene, CH2 = CHC/ is the monomer of PVC.
What are the C-C-C bond angles along the polymeric chain in PVC?
 They are all 109.5°<br> half are 109.5° and half are 120°<br> They are all 120° <br> They are all 180°<br>
2 Denaturation of protein means the structure of protein is disrupted indicate which factor does not denature protein
oxidizing agent <br> heat protein <br> keeping pH 7.35 <br> pH changes <br>
3 In which of these processes are small organic molecules changed into macromolecules?
 the fractional distillation of crude oil <br> the cracking of petroleum fractions <br> the hydrolysis&nbsp; of proteins <br> the polymerization <br>
4 Which of these polymers is a synthetic polymer?
starch <br> animal fat <br> polyester in an addition polymer <br> cellulose <br>
5 Which of the following represents peptide linkage -C=N- -CO-NH- -CH<sub>2</sub>-NH- -CH-NH-
6 The element which is not present in all proteins is C H O S
7 A peptide having molecular mass of more than 10,000 is called as Fat Vitamin Carbohydrate Proteins
8 Polypeptides are formed from amino acids by Oxidation Addition Condensation Reduction
9 Condensation occurs between amino acids with the elimination of H<sub>2</sub>O H<sub>2</sub> O<sub>2</sub> NH<sub>3</sub>
10 Nihydrin reacts with amino acid to give product of Bluish color Violet color Bluish violet color No color
11 Amino acid α-hydroxy carboxylic acid and CO<sub>2</sub> gas H<sub>2</sub> gas N<sub>2</sub> gas NH<sub>3</sub> gas
12 Amino acid which has cyclic structural is Proline Valine Alanine Glutamic acid
13 Which of the following amino acid is named due to its taste Alanine Lysine Valine Glycine
14 An example of neutral amino acid is Gylcine Lysine Aspartic acid Glutamic acid
15 Amino acids which contain two amino groups are called Acidic amino acids Basic amino acids Neutral amino acids Amphoteric amino acids
16 Which is not an amino acid Lysine Gylcine Alanine Aniline
17 Amino acid produce α-hydroxy carboxylic acid when treated with KNO<sub>3</sub>/HBr Zn/HCI NaNO<sub>2</sub>/HCI Pd/BaSO<sub>4</sub>
18 Amino acids ionize in water to form Zwitterion Internal saH Dipolar ion All of these
19 Which of the following is basic amino acid Lysine Histidne Proline Both a and b
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