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Chemistry |
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| 121)The enzyme that hydrolyses cane sugar to glucose and fructose is | |||
| zymase | lipase | ||
| invertase | diastase | ||
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| 122)The compound used as an anti-malarial drug is | |||
| aspirin | chloroquin | ||
| hydroquinone | neoprene | ||
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| 123)The first organic compound to be synthesised in the laboratory was | |||
| acetic acid | urea | ||
| ethylene | tartaric acid | ||
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| 124)The acid that can be used as a hypnotic is | |||
| benzoic acid | butanoic acid | ||
| tartaric acid | barbituric acid | ||
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| 125)The hottest part of the gas flame is known as the | |||
| dark zone | blue zone | ||
| non-luminous zone | luminous | ||
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| 126)Artificially, gasoline is prepared by an industrial process known as | |||
| Fischer-Tropsch process | Haber's process | ||
| Sabatier and Sendren's process | Friedel-Crafts reaction | ||
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| 127)Diesel oil is preferred for heavy motor vehicles because of | |||
| less consumption | less damage to engine | ||
| higher efficiency and fuel economy | higher industrial production from crude | ||
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| 128)River water is harder than rain water because it | |||
| is exposed to the atmosphere | contains salts of calcium and magnesium | ||
| is always flowing | contains sodium chloride | ||
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| 129)In the human body, the most abundant element is | |||
| carbon | nitrogen | ||
| oxygen | calcium | ||
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| 130)The pH of human blood is around | |||
| 3 | 6 | ||
| 7.5 | 12 | ||
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| 131)Persons in asbestos factories are affected by air pollution. The most affected part of their body is the | |||
| throat | skin | ||
| ehy | lungs | ||
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| 132)The function of DNA in the body is | |||
| to help in the systhesis of proteins | to help in the release of energy | ||
| to control heredity | biogenesis of the mitochondria | ||
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| 133)Turpentine oil is obtained from the wood of | |||
| Mycas | Pinus | ||
| Gnetum | Cedrus | ||
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| 134)Enzymes are made up of | |||
| nucleic acids | carbohydrates | ||
| amino acids | fatty acids | ||
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| 135)The nature of saliva is | |||
| basic | neutral | ||
| amphoteric | acidic | ||
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