IIT JEE : Chemistry Of Heavier Metals QUESTIONS AND ANSWERS :: part1 : 21 to 25
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
21.Which of the following statements is not correct? |
| Wrought iron is ductile, soft and malleable |
| Anneabled steel is soft |
| Tempering increases the hardness of steel |
| Hardness of steel increases with increases in carbon content. |
22.The most stable oxidation state of copper is |
| Cu (I) |
| Cu (II) |
| Cu (III) |
| Cu (IV). |
23.90% pure silver has fineness |
| 9 |
| 18 |
| 900 |
| 90. |
24.Quick silver is |
| Ag |
| Hg |
| Sn |
| Pb. |
25.Which of the following metals occurs in nature in combined as well as in native state? |
| Zinc |
| Mercury |
| Silver |
| Silver |
More Chemistry Of Heavier Metals QUESTIONS AND ANSWERS available in next pages
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