Question

Assertion: sodium and potassium are stored under oil
Reason they catch
fire and start burning when kept open
in the air
​

Answer 1

Answer:

Both assertion and reason are correct

Answer 2

Answer:

Both assertion reasons are right.

Sodium, potassium, and lithium are stored under oil because metals like sodium and potassium react so, vigorously that they catch fire if kept in the open. Hence, to protect them they are kept immersed in kerosene oil.