General Knowledge : General Science QUESTIONS AND ANSWERS :: part1 : 76 to 80
Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2024 examinations :
76.Which of the following is an element ? |
| Ruby |
| Sapphire |
| Emerald |
| Diamond |
77.Which of the following is not correctly matched ? |
| Galena : Lead sulphide |
| Green vitriol : Copper sulphate |
| Plaster of Paris : Calcium sulphate |
| Calomel : Mercurous chloride |
78.Which of the following is in liquid form at room temperature ? |
| Cerium |
| Sodium |
| Francium |
| Lithium |
79.The purest form of iron is |
| steel |
| cast iron |
| pig iron |
| wrought iron |
80.The most abundant metal in the earths crust is |
| zinc |
| copper |
| aluminium |
| iron |
More General Science QUESTIONS AND ANSWERS available in next pages
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