Q1. Given below are two statements: Statement I: Sodium metal is stored in kerosene oil because it is highly reactive. Statement II: Sodium metal reacts vigorously with nitrogen. In the light of the above statements, choose the most appropriate answer from the options given below.
Explanation
Sodium is an alkali metal and reacts very quickly with oxygen and moisture in air, so it is kept under kerosene oil to cut off contact with air and water. That makes the first statement correct. Sodium does not react vigorously with nitrogen under ordinary conditions; lithium is the alkali metal best known for forming nitride directly. Therefore the claim about a vigorous reaction with nitrogen is incorrect. The choices saying both statements are correct, both are incorrect, or only the nitrogen statement is correct do not match the chemical behaviour.