General Knowledge : General Science QUESTIONS AND ANSWERS :: part1 : 86 to 90
Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2024 examinations :
86.Water is a good solvent of ionic salts because |
| it has ni colour. |
| it has a high boiling point. |
| it has a high dipole moment. |
| it has a high specific heat. |
87.The percentage of carbon is the least in |
| grey cast iron |
| wrought iron |
| white cast iron |
| steel |
88.Which of the following is the best conductor of electricity ? |
| Copper |
| Mica |
| Zinc |
| Silver |
89.Which of the following substances is a bad conductor of electricity but a good conductor of heat ? |
| Asbestos |
| Celluloid |
| Purspecks |
| Mica |
90.The highest grade of coal whose surface is shining and has the highest calorific value, is |
| Bituminous |
| Lignite |
| Anthracite |
| Peat |
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