NEET
- Exam
- NEET
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- Chemistry
- Chapter
- s Block Elements
NEET · Chemistry · s Block Elements
Why does lithium, despite having the most negative E o value among...
Why does lithium, despite having the most negative Eo value among the alkali metals, react less vigorously with water compared to sodium?
Options
- ALithium has a larger size and lower hydration energy.
- BLithium has a smaller size and lower hydration energy.
- CSodium has a larger size and higher hydration energy.
- DSodium has a smaller size and higher hydration energy.
Correct answer
B. Lithium has a smaller size and lower hydration energy.
Step-by-step solution
The less vigorous reaction of lithium with water, despite having a more negative Eo value, is attributed to its small size and very high hydration energy, which makes it less reactive than sodium.