Gk Questions with AnswersChemistry General Knowledge Questions and Answers
| 5. | In coloured glass, the purple colour is imparted by | ||
|---|---|---|---|
| A. Selenium sulphide | |||
| B. Manganese oxide | |||
| C. Cadmium sulphide | |||
| D. Ferric oxide | |||
| Answer | ||
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| 6. | The oxide ore of iron is | ||
|---|---|---|---|
| A. Bauxite | |||
| B. Haematite | |||
| C. Pyrolusite | |||
| D. Cinnabar | |||
| Answer | ||
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| 7. | Oxides of non metals are | ||
|---|---|---|---|
| A. Acidic | |||
| B. Basic | |||
| C. Neutral | |||
| D. Amphoteric | |||
| Answer | ||
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| 8. | Sulphur is extracted by | ||
|---|---|---|---|
| A. Frasch process | |||
| B. Solvay process | |||
| C. Haber process | |||
| D. Contact process | |||
| Answer | ||
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