ECAT Chemistry Online Test With Answers

ECAT Chemistry Online Test

Sr. # Questions Answers Choice
1 The protein which only yield amino acids and their derivatives Simple proteins Complex proteins Derived protein All of these
2 When a nitrogeneous base combine with a sugar it is called Ribose Nucleotides Nucleoside None
3 Which is the polymer that has amide linkage in its structure PVC Poly ethene Polyester Nylon
4 Oxidation reduction is done by Oxidoreductase Lipases Lyase None of these
5 Protein may have Primary structure Secondary structure Tertiary structure All of these
6 Sterols, vitamin D and terpenese belong to Simple lipids Complex lipids Derived lipids None
7 The clotting time of blood is increased due to the deficiency of Vitamin A Vitamin K Vitamin D Vitamin C
8 Ricket is caused due to the deficiency of vitamin A D B E
9
10 Hydrolysis of protein by 6M HCl gives peptides and thenα-amino acids. How manyα-amino acids molecules are obtained on the hydrolysis of a tetrapeptide 2 3 4 5
11 Theα-carbon of 19 out of 20α-amino acids found in protein is chiral or asymmetric. Hence they are optically active. Only one of the 20α-amino acids is not optically active which one is the Proline Glycine Hitidine Alanine
12 The amino group in 19α-amino acids is primary; only oneα-amino acid has secondary amino group which one is that Alanine Glutamic acid Glycine Proline
13 Which of the followingα-Amino acids has basic R-group Proline Glutamic acid Histidine Valine
14 Which is not an essential amino acid Leucine Methionine Histidine Lysine
15 Essentialα-amino acids are those which are necessary in the diet
Which one is an essentialα-amino acids
 Alanine Aspartic acid Glycine Tryptophan
16 Non polar R group Polar R group Acidic R group Metallic R group
17 Amino acids are bifunctional organic compounds what are the two function groups Carboxylic acid and alcohol Alcohol and aldehyde Carboxylic acids and ketone Amino group and carboxylic acid
18 There are 20α-amino acids found in protein 19 have -- NH2as the amino group. Only one of theα-amino acids has a secondary amino group which one is this Glycine Lysine Proline Cystein
19 α-Amino acids are found in protein. Which of the following is anα-amino acid
20 Which of the following nitrogen fertilizer contains more nitrogen NaNO<sub>3</sub> KNO<sub>3</sub> NH<sub>4</sub>NO<sub>3</sub> Urea
21 Detergents are Synthetic products Natural products Both (a) and (b) None of these
22 Surfactants are organic compounds, used in detergents which reduce the Viscosity of water Surface tension of water Boiling point of water Wetting ability of water
23 The trade name of polytetrafluoroethylene (PTFE) is Teflon PVC Terelene Polyester
24 Tryosine was isolated from Butter Cheese Oils Fats
25 Which formula represents the organic compound formed by the reaction of propanoic acid with methanol in the presence of concentrated sulphuric acid as a catalyst CH<sub>3</sub>CH<sub>2</sub>COCH<sub>3</sub> CH<sub>3</sub>CH<sub>2</sub>CO<sub>2</sub>CH<sub>3</sub> CH<sub>3</sub>CO<sub>2</sub>CH<sub>2</sub>CH<sub>3</sub> CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>CO<sub>2</sub>CH<sub>3</sub>
26 With amino acids ninhydrin solution gives Blue Violet Bluish violet White
27 Which isomers of C5H11OH gives, on dehydration, the greatest number of different alkenes
28 Carbolic acid is the other name for Methanol Ethanol Propanol Phenol
29 An alcohol with molecular formula CnH2n+1OH has a chiral carbon atom but does not react with MnO-4/H+what is the least number of carbon atoms such an alcohol could possess 5 6 7 8
30 Which is a reagent for Lucas test ZnCl<sub>2</sub>+ Conc. HCl Zn Na Br
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