General Knowledge : General Science QUESTIONS AND ANSWERS :: part3 : 86 to 90
Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :
86.A mixture of salt and sand can be separated by |
| Sublimation |
| Dissolving in water |
| Gravity separation |
| Dry distilation |
87.PVC is obtained by the polymerisation of |
| Propene |
| Vinyl chloride |
| Styrene |
| Acetylene |
88.Which of the following is the combination of the three primary colours used in a colour TV ? |
| Green, Blue, Red |
| Red, Green, Yellow |
| Green, Yellow, Blue |
| Yellow, Blue, Red |
89.Vulcanisation is |
| science of studying volcanoes |
| method to degrade polymeres |
| process connected with the making of voltaic cells |
| process of hardening of rubber by heating it with sulphur |
90.The organ which destroys worn out RBCs in the body of a vertebrate is |
| pancreas |
| liver |
| bone narrow |
| spleen |
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