ECAT Chemistry Online Test With Answers

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ECAT Chemistry Online Test

Sr. # Questions Answers Choice
1 Teflon, styron and neoprene are all Copolymers Condensation polymers Homopolymers Monomers
2 Terylene is madeby polymerization of terephthalic acid with Ethylene glycol Phenol Ethanol Catechol
3 Which one of the following is not an example of chain growth polymer? Neoprene Bunna-S PMMA Glyptal
4 Natural rubber is a polymer of Butadiene Ethyne Styrene Isoprene
5 Which of the following is not a synthetic polymer? Polyethylene PVC Nylon Cellophane
6 The group linkage present in fats is Peptide linkage Ester linkage Glycosidic linkage None of these
7 A sequence of how many nucleotides in massenger RNA makes a codon for an amino acid Three Four One Two
8 Which of the following is an example of ketohexose? Mannose Galactose Maltose Fructose
9 Two vitamins absorbed from intestine along with fats are A, D A, B A, C D, B
10 The number of amino acids found in proteins that a human body can synthesize is 20 10 5 14
11 Purine derivative among the following bases is Thymine Uracil Guanine Cytosine
12 In fructose the possible optical isomers are 12 8 16 4
13 Violet colour is obtained when dilute CuSO4is added in alkaline solution of protein. This test is known as Biuret Xanthoproteic test Hopkins-cole All of these
14 The prosthetic group in glycoprotein is Carbohydrate Fat Vitamin Nucleic acid
15 An example of water soluble vitamin is Vitamin D Vitamin E Vitamin A Vitamin C
16 Which of the following has magnesium? Carbonic anhydrase Haemocyanin chlorophyll Vitamin B<sub>12</sub>
17 Which carbohydrates is an essential constituent of plant cells? Starch Cellulose Sucrose Vitamins
18 DNA has deoxyribose, a base and the third component is Phosphoric acid Ribose Adenine Thymine
19 Which of the following is not present in nucleotide? Guanine Cytosine Adenine Tryoxine
20 The metal present in blood is Al Hg Cu Fe
21 Copolymer is Nylon-6 Nylon 66 PMMA Polyethene
22 Which one is a polymer compound? SO<sub>2</sub> CO<sub>2</sub> CH<sub>4</sub> PVC
23 Which of the following is not an example of addition polymer? Polyethene Polystyrene Neoprene Terylene
24 Glyptal polymer is obtained from glycerol on reacting with Malonic acid Phthalic acid Maleic acid Acetic acid
25 Among the following polymers, the strongest molecular forces are present in Elastomers Fibres Thermoplactics Thermosetting polymers
26 Of the following which is a step growth polymer Bakelite Polyethylene Teflon PVC
27 The product of addition polymerization reaction is PVC Nylon Terylene Polyamide
28 Bakelite is obtained from phenol by reacting with Acetaldehyde Acetal Formaldehyde Chlorobenzene
29 The raw material to form nylon is Adipic acid Butadiene Isoprene Ethylene
30 Which of the following fibres are made of polyamides? Dacron Orlon Nylon Rayon
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