Consider the isoelectronic species, . The correct order of increasing length of their radii is :
1.
2.
3.
4.
The correct order of size of the given species is:
1. | I > I– > I+ | 2. | I+ > I– > I |
3. | I > I+ > I– | 4. | I– > I > I+ |
Match the correct atomic radius with the corresponding element.
Element |
Atomic radius (pm) |
||
A. |
Be |
i. |
74 |
B. |
C |
ii. |
85 |
C. |
O |
iii. |
112 |
D. |
B |
iv. |
77 |
E. |
N |
v. |
66 |
Codes :
Options: | A | B | C | D | E |
1. | i | ii | iii | iv | v |
2. | iii | iv | v | ii | i |
3. | iv | ii | iii | i | v |
4. | v | ii | i | iii | iv |
Given are the following sets of species:
(a)
(b)
(c)
(d)
The sets containing only isoelectronic ions among the above are:
1. (a), (d)
2. (b), (c)
3. (c), (d)
4. (b), (d)
In which following options of arrangement does not agree with the variation of the property indicated against it?
(a) | Al3+< Mg2+< Na+< F– (Increasing ionic size) |
(b) | B < C < N (Increasing atomic size) |
(c) | I < Br < Cl (Increasing atomic size) |
(d) | Li < Na < K (Metallic character) |
Choose the correct option
1. | (a), (d) | 2. | (b), (c) |
3. | (c), (d) | 4. | (b), (d) |
The ionic radii vary in :
(a) | Inverse proportion to the effective nuclear charge. |
(b) | Inverse proportion to the square of effective nuclear charge. |
(c) | Direct proportion to the screening effect. |
(d) | Direct proportion to the square of screening effect. |
Choose the correct option :
1. (a), (c)
2. (b), (c)
3. (c), (d)
4. (b), (d)