Q. No.The correct graph depicting ionization energies for 2nd period elements is:
1.
2.
3.
4.
None of the above
| Statement A: | The elements Z = 117 belongs to chalcogen family and the electronic configuration would be [Rn] 5f146d107s27p4 |
| Statement B: | The element with Z = 120 belongs to Group 2 (alkaline earth metals), and the electronic configuration would be [Uuo]8s2 |
The correct option is:
| 1. | Statement A is correct, Statement B is wrong. |
| 2. | Statement A is wrong, Statement B is correct. |
| 3. | Both Statement A and Statement B are wrong. |
| 4. | Both Statement A and Statement B are correct. |
Abnormally high ionization enthalpy of B as depicted in the graph below can be due to :
1. Completely filled 2p subshell.
2. Completely filled 2s subshell.
3. Completely filled 3d subshell.
4. Completely filled 4f subshell.
The graph between ionization energy and atomic number for the first group elements is shown below:
The element represented by Y in the graph above is:
1. Cs
2. Rb
3. Ca
4. K
In the following graph of variation of ionization energy with atomic number, X, Y, and Z represent elements.
The group number of X, Y, and Z elements is:
| 1. | 1st group | 2. | 15th group |
| 3. | 17th group | 4. | 18th group |
Consider the following curves:
X represents group with highest atomic radius. The element that belongs to Y group can be :
| 1. | Na | 2. | Mg |
| 3. | Br | 4. | Si |
The correct order of ionization energy of W, X, Y and Z is-
| 1. | W > X > Y > Z | 2. | W < X < Y > Z |
| 3. | W < X > Y< Z | 4. | W > X > Y< Z |
Match the following isoelectronic species in Column I and Column II:
| Column I | Column II | ||
| i. | a. | ||
| ii. | Ar | b. | |
| iii. | c. | ||
| iv. | d. |
| i | ii | iii | iv | |
| 1. | b | c | a | d |
| 2. | c | b | a | d |
| 3. | c | d | b | a |
| 4. | b | c | d | a |
Correct statement(s) among the following are:
| (a) | Helium has the highest first ionisation enthalpy in the periodic table. |
| (b) | Chlorine has less negative electron gain enthalpy than fluorine. |
| (c) | Mercury and bromine are liquids at room temperature. |
| (d) | In any period, the atomic radius of alkali metal is the highest. |
Choose the correct option:
1. (a), (c), (d)
2. (a), (b), (c)
3. (a), (c)
4. (a), (d)
Match Column I with Column II.
| Column-I | Column-II | ||
| (a) | Copper | (i) | Non-metal |
| (b) | Fluorine | (ii) | Transition metal |
| (c) | Silicon | (iii) | Lanthanoid |
| (d) | Cerium | (iv) | Metalloid |
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iv) | (i) | (iii) |
| 2. | (ii) | (i) | (iv) | (iii) |
| 3. | (iv) | (iii) | (i) | (ii) |
| 4. | (i) | (ii) | (iii) | (iv) |
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