Gk Questions with AnswersChemistry
DIRECTIONS : Questions based on Chemistry.
| 26. | Which one of the following types of glass can cut off ultraviolet rays? | ||
|---|---|---|---|
| A. soda glass | |||
| B. pyrex glass | |||
| C. jena glass | |||
| D. crookes glass | |||
| 27. | The major ingrediation of leather is | ||
|---|---|---|---|
| A. Carbohydrate | |||
| B. Collagen | |||
| C. Polymer | |||
| D. nuclei acid | |||
| 28. | Which one of the following metals is found in plaster of paris? | ||
|---|---|---|---|
| A. Calcium | |||
| B. Magnesium | |||
| C. Pottasium | |||
| D. Sodium | |||
| 29. | The oxide of Nitrogen used in medicine as anaesthetic is | ||
|---|---|---|---|
| A. Nitrogen dioxide | |||
| B. Nitric oxide | |||
| C. Nitrous oxide | |||
| D. Nitrogen pentoxide | |||
| 30. | Which variety of coal contains the highest percentage of carbon? | ||
|---|---|---|---|
| A. Anthracite | |||
| B. Peat | |||
| C. Bituminous | |||
| D. Lignite | |||