# NEET Chemistry The s-Block Elements Questions Solved

Sodium and potassium react with water much more vigorously than lithium because :

(A) Sodium and potassium have high values of hydration energy as compared to that of lithium.

(B) Sodium and Potassium have a higher melting point than that of lithium.

(C) Sodium and potassium have a lower melting point than that of lithium.

(D) Sodium and potassium have lower hydration energy than that of lithium.

(C)

When sodium and potassium react with water, the heat evolved causes them to melt, giving a

larger area of contact with water, lithium, on the other hand, does not melt under these conditions

and thus reacts more slowly.

Difficulty Level:

• 25%
• 10%
• 16%
• 50%
Crack NEET with Online Course - Free Trial (Offer Valid Till August 27, 2019)