Statement I : Sodium metal is stored in kerosene
Statement II : The density of sodium is greater than that of potassium

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Statement I and Statement II are false

Both statements I and II are correct

Statement I is incorrect but statement II is correct.

Statement I is correct but statement II is incorrect.

answer is B.

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Detailed Solution

All alkalimetals are stored in kerosene.
Reason : Due to their high reactivity with water (or) atmospheric moisture, we can't store them in water.
Na + H₂O→ NaOH + 1/2H₂↑ + Δ
The above reaction is highly exothermic in nature
Therefore, in order to avoid the above reaction, we need to store them in kerosene [inert].
→ But in the case of "Li" ,due to its low density, it floats on the surface of kerosene; that means it gets exposed to atmospheric air, therefore the Li metal is stored in kerosene by wrapping it with paraffin wax material.
→ Density : Na > K
Therefore, statement - I and statement - II are correct.

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