A) \[Li>Na>K\]
B) \[K>Li>Na\]
C) \[Na>Li>K\]
D) \[Li>K>Na\]
Correct Answer: A
Solution :
In a group, the ionisation potential decreases from top to bottom. In the alkali group, the ionisation potential decreases from Li to Cs.| Li | Na | K | Rb | Cs | |
| eV | 5.3 | 5.1 | 4.3 | 4.2 | 3.9 |
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