Gk Questions with AnswersChemistry Gk Questions and Answers
| 1. | The most common ore of Aluminium is | ||
|---|---|---|---|
| A. Felspar | |||
| B. Bauxite | |||
| C. Haematite | |||
| D. Cryolite | |||
| Answer | ||
|
| 2. | Which of the following is a metalloid? | ||
|---|---|---|---|
| A. Copper | |||
| B. Iron | |||
| C. Potassium | |||
| D. Arsenic | |||
| Answer | ||
|
| 3. | When aluminium reacts with alkalis, the gas liberated is | ||
|---|---|---|---|
| A. Nitrogen | |||
| B. Chlorine | |||
| C. Hydrogen | |||
| D. Oxygen | |||
| Answer | ||
|
| 4. | The purest form of iron is | ||
|---|---|---|---|
| A. Wrought iron | |||
| B. Steel | |||
| C. Cast iron | |||
| D. Pig iron | |||
| Answer | ||
|