9th Class Chemistry English Medium Online Test For Full Book With Answers

9th Class Chemistry English Medium Online Test For Full Book

Sr. # Questions Answers Choice
1 Margarine is produced by adding hydrogen to vegetable oil at. 2000 <sup>o</sup>C 100<sup>o</sup>C 200<sup>o</sup>C 1000<sup>o</sup>C
2 Condensed formula of ethane is. C<sub>3</sub>H<sub>8</sub> C<sub>2</sub>H<sub>2n+2</sub> C<sub>2</sub>H<sub>2n-2</sub> C<sub>n</sub>H<sub>2n+1</sub>
3 Which one the following is more reactive? Methane Ethane Ethene Acetylene
4 Traces of acetylene are present in coal gas about. 0.06 % 0.08% 1.1% 90%
5 Alkenes are produced in large amounts by cracking of. Natural gas Petroleum Benzene xylol
6 In hydrogenation of vegetable oil catalyst employed is. Ni Pt ZnO Cr<sub>2</sub>O<sub>3</sub>
7 Chemical formula of Stearic acid. C<sub>15</sub>H<sub>31</sub>COOH C<sub>17</sub>H<sub>35</sub>COOH C<sub>15</sub>H<sub>37</sub>COOH None of them
8 Triglycerides are fatty acids. Unsaturated Saturated Both of them None of them
9 Oils and fats are esters of large chain fatty acids with. Glycogen Glucose Starch Glycerol
10 Lipids are macromolecules made up of. Fetty acids Amino acids Nucleotides None of them
11 When bones are heated they give. Starch Gelatin Fats Oils
12 The nature of enzyme is. Protein Vitamin Fats Carbohydrate
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