
IIT JEE : Chemical Families Periodic Properties QUESTIONS AND ANSWERS :: part1 : 16 to 20
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
16.Among the elements A, B, C and D having atomic numbers 7, 8, 9 and 12 respectively, the element with smallest size and highest I.E. is |
| A |
| B |
| C |
| D |
17.Which of the following properties always increases along the periodic table in moving from left to right? |
| Ionization energy |
| Electron affinity |
| Valency |
| None of these. |
18.An element with atomic number 20 is placed i which period of the periodic table? |
| 4 |
| 3 |
| 2 |
| 1. |
19.Which of the following elements has the highest third ionization energy? |
| Sodium |
| Magnesium |
| Aluminium |
| Silicon.` |
20.Law of octaves was proposed by |
| Lothar Meyer |
| D.I. Mendeleev |
| J.A.R. Newlands |
| J.W. Debereiner. |
More Chemical Families Periodic Properties QUESTIONS AND ANSWERS available in next pages
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