IIT JEE : Chemical Families Periodic Properties 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.The law of triads is applicable to |
| Lithium, beryllium, boron |
| Fluorine, chlorine, bromine |
| Chlorine, bromine, iodine |
| Sodium, potassium, rubidium. |
22.Which of the following is the most electronegative? |
| Be |
| B |
| Al |
| Ga. |
23.Which group contains elements that exist as monoatomic molecules? |
| 1 |
| 2 |
| 14 |
| 18. |
24.In each period, the most electropositive element belongs to group |
| 18 |
| 17 |
| 1 |
| 2. |
25.Which one of the following sets of elements has the strongest tendency to form positive ions in gaseous state? |
| Li, Na, K |
| Be, Mg, Ca |
| F, Cl, Br |
| O, S, Se. |
More Chemical Families Periodic Properties QUESTIONS AND ANSWERS available in next pages
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