MDCAT Chemistry Online Test With Answers

MDCAT Chemistry Online Test

Sr. # Questions Answers Choice
1 Nucleic acid fist descovered in 1868 1869 1900 1905
2 Alkaline phosphatese is associated with ______ disease Heart disease Rickets Diabtese None
3 Optimum PH rang for amylases is 6 - 6.4 6.4 - 6.6 6.4 - 6.9 6.6 - 6.9
4 When enzyme fumarase is exposed to UV light, then Its activity is enhanced It converts into Glucokinase It is inactivated None
5 Which of the following category of enzyme catalyze addition of Ammonia Ligases Lyases Isomerases Pepsinogen
6 Triglyceride have iodine number ______ having no double bond 0 2 3 4
7 Reason for the rancidity of fat is Low sponification High reactivity of fat Oxidation of fat All
8 Sponification number of a fat which requires 178,000 mg of KOH for saponification is (mol wt = 1240) 120 143 208 210
9 Soap is formed when triglyceride reacts with Caustic soda Soda lime Lime Caustic potash
10 Which products are formed when triglyceride is hydrolysed Glycerol Fatty acid Glycerin Both A and B
11 Which of the following is derived lipid Sterols Vit D Terpenes All
12 A fat with 18 carbon & no double bond will be Solid Liquids Gel like None
13 Which of the following carbohydrates is used in silvering of mirrors Sucrose Cellulose Fructose Glucose
14 Helical structure of protein is stabilized by Peptide bond Dipeptide bond Van der wall's forces Hydrogen bonding
15 Fumaric acid converted into malic acid in the presence of Lyases Glyceomutases Fumarase Hydrolases
16 Which of the following activates phosphatase enzyme Ca<sup>2+</sup> K<sup>+1</sup> Mg<sup>2+</sup> Zn<sup>2+</sup>
17 Which of the following polymer has application in paper industry Starch Glycogen Protein All
18 Which of the following protein is used to make buttons Gelatin Callogen Albumin Casein
19 The word "Lipids" derived from the language Greek Latin German English
20 Most complex structure of protein is Primary protein Secondary protein Tertiary protein Quaternary protein
21 Which of the following protein has application is food industry Globulin Gelatin Casein All
22 Which of the following is a simple protein Albumins Legumin Callogen All
23 Proteins are classifies into ______ classes based on physic-chemical properties 2 3 5 9
24 Glycogen on hydrolysis give Glucose Lactose Fructose None
25 Which of the following is correct statement about cellulose It is sweet is taste It contain 20% amylose It is used in laundering It contains<span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 24px; text-align: center; background-color: rgb(255, 255, 224);"><i>β</i></span>1-4-linkage
26 Which of the following is the element not present in all proteins Carbon Hydrogen Nitrogen Sulphur
27 Vegetable oils are Unsaturated fatty acids Glycosides of unsaturated fatty acids Glycosides of saturated fatty acids None
28 Plastic are pollution problem because many plastics Are made from petroleum Are very inflammable Burn to produce toxic fumes Decompose to produce toxic product
29 The alternate name of Glucose is Dextrose Grape sugar Blood sugar All
30 Empirical formula of monosaccharide is (CHO)<sub>n</sub> CH<sub>n</sub>O<sub>n+1</sub> C<sub>n</sub>H<sub>2</sub>O (CH<sub>2</sub>O)<sub>n</sub>
31 Sugar are polyhydroxy compounds of Carboxylic acid Ketones Aldehyde Both B and C
32 General formula of carbohydrate is C<sub>x</sub>(H<sub>2</sub>O)<sub>y+x</sub> C<sub>x</sub>(H<sub>2</sub>O)<sub>y</sub> C<sub>x</sub>(H<sub>2</sub>O)<sub>y-1</sub> C<sub>x</sub>(H<sub>2</sub>O)<sub>y+1</sub>
33 Which of the following is correct for epoxy resin Coating material for thermal power stations It give chemical resistance Epichlorohydrin is monomer All of these
34 Which of these polymer is synthetic polymer Animal fat Starch Cellulose Polyester
35 Which of the following is an addition polymer Nylon-6, 6 Polystyrene Terylene Epoxy resin
36 Adipic acid and Hexamethylenediammine polymerize to give Acrylic resins Plastic fiber Nylon-6, 6 None
37 Which of the following is Homopolymer Polyvinyl acetate Acrylic resin Polyester resins Both A and C
38 Monomer for acrylic resins is Acrylic acid Methylmethacrylate Acryloritrile All
39 Which of the following is addition polymerization PVA Polystyrene Both None
40 Polymerization process was classified in 1926 1927 1929 1931
41 Polumerization process was classified by W.H. Garold William Hackel W.H. Carothers H. Carothers
42 Which of the following is thermosetting polymer Synthetic varnishes Epoxy resins PVC Both A and B
43 Plastic toys are Copolymer Thermoplastic polymer Thermosetting polymer Homopolymer
44 Molecular mass of PVC is (DP = 1200) 63000 75000 75600 80,000
45 Albumin, globin and casein are Milk proteins Plasma proteins Egg proteins Meat proteins
46 Ornithine is A basic amino acid An essential amino acid Present in protein structure All of these
47 Glycine is characerized by Absence of an asymmeteric carbon Absence of optical activity The shortest amino acid All of these
48 Arginine, lysine and ornithine are Obtained by hydrolysis of proteins Essential amino acids Basic amino acids Derived from butyric acid
49 The buffering property of proteins is due to the presence of Acidic and basic group Hydrogen bonds Indole group Hyrophobic
50 A protein rich in proline and hydroxy proline is Globin Collagen Casein Histone
51 The bonds present in the primary structure of proteins are by Dialysis Electrophoresis Filtration Alcohol precipitation
52 Aspartic acid is a (an) Monoamino dicarboxylic acid Diamino Monocarboxylic acid Aromatic amino acid Imino acid
53 Plasma proteins are separated by Dialysis Electrophoresis Filtration Alcohol precipitation
54 Albumins and globulins are defined as Derived protein Conjugated protein Fibrous protein Globular protein
55 Albumins are separated by 1/2 saturated ammonium sulfate Full saturated ammonium sulfate 20% saturated ammonium sulfate 60% saturated ammonium sulfate
56 On electrophoresis for plasma proteins using buffer of pH 8.6 The proteins are neutral The proteins carry negative charge The proteins carry positive charge The proteins are easily precipitated
57 Caseinogen is Simple protein Derived protein Phosphoprotein Rich in sulfur containing amino acids
58 Collagen contains high percentage of Glycine Tryptophan Phenyl Alanine Serine
59 Keratin is Protein of tendons Rich in sulfur Poor in cysteine Conjugated protein
60 Globulin is A basic protein A protein of low molecular weight Heat coagulable protein Easily soluble in water e.A fibrous protein
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