General Knowledge : General Science QUESTIONS AND ANSWERS :: part2 : 51 to 55
Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :
51.Which of the following is used in making artificial sweetener saccharin ? |
| Benzene |
| Toluene |
| Phenol |
| Aniline |
52.In an atomic nucleus, neutrons and protons are held together by |
| gravitational forces |
| magnetic forces |
| exchange forces |
| coulombic forces |
53.In fireworks, the green flame is produced because of |
| mercury |
| sodium |
| postassium |
| barium |
54.Which of the following gases is obtained by the reaction of water with calcium carbide ? |
| Acetylene |
| Ethylene |
| Methane |
| Water gas |
55.Which radioactive pollutant has recently drawn the attention of the public, due to its occurrence in the building material ? |
| Radium |
| Radon |
| Thorium |
| Plutonium |
More General Science QUESTIONS AND ANSWERS available in next pages
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