Gk Questions with AnswersChemistry
DIRECTIONS : Questions based on Chemistry.
| 86. | Charcoal is | ||
|---|---|---|---|
| A. Amorphous | |||
| B. Crystalline | |||
| C. Hygroscopic | |||
| D. None of these | |||
| 87. | Cooking oil can be converted into vegetable ghee by the process of | ||
|---|---|---|---|
| A. Oxidation | |||
| B. Crystallization | |||
| C. Distillation | |||
| D. Hydrogenation | |||
| 88. | Another name for mercurous chloride is | ||
|---|---|---|---|
| A. Amalgam | |||
| B. Calomel | |||
| C. Blue vitriol | |||
| D. Plaster of paris | |||
| 89. | The chief source of aluminium is | ||
|---|---|---|---|
| A. Bauxite | |||
| B. Cargolite | |||
| C. Haematite | |||
| D. Feldspar | |||
| 90. | The major constituent of air is | ||
|---|---|---|---|
| A. Hydrogen | |||
| B. Carbon dioxide | |||
| C. Nitrogen | |||
| D. Oxygen | |||