Gk Questions with AnswersChemistry
DIRECTIONS : Questions based on Chemistry.
| 81. | The iron layered with zinc is called | ||
|---|---|---|---|
| A. Pig iron | |||
| B. Cost iron | |||
| C. Galvanised iron | |||
| D. Steel | |||
| 82. | When quick lime is added to water | ||
|---|---|---|---|
| A. Heat is liberated | |||
| B. Heat is absorbed | |||
| C. Temperature decreases | |||
| D. No heat change takes place | |||
| 83. | The cathode of a lead storage battery is made up of | ||
|---|---|---|---|
| A. Zinc | |||
| B. Lead oxide | |||
| C. Manganese dioxide | |||
| D. Lead | |||
| 84. | Vinegar is trade name of | ||
|---|---|---|---|
| A. Acetic acid | |||
| B. Chloroform | |||
| C. Ethyl alcohol | |||
| D. Carbon tetrachloride | |||
| 85. | Which of the following elements behave chemically both as metal and non metal? | ||
|---|---|---|---|
| A. Boron | |||
| B. Argon | |||
| C. Carbon | |||
| D. Xenon | |||