Question

Potassium is kept in.

• A. Alcohol
• B. Water
• C. Kerosene
• D. Liquid ammonia

Answer 1

Answer: (C)

Kerosene

Answer 2

Alkali metals are highly reactive metals. They react with

Alcohol– $2C_{2}H_{5}OH + 2K \rightarrow 2C_{2}H_{5}OK + H_{2}$

Water – $2K + 2H_{2}O \rightarrow 2KOH + H_{2}$

Ammonia – $K + (x + y)NH_{3} \rightarrow \underset{\text{Ammoniated cation}}{\left\lbrack K(NH_{3})_{x} \right\rbrack^{+}} +$

$\underset{Ammoniatedelectron}{\lbrack e(NH_{3})_{y}\rbrack^{-}}$

But they do not react with kerosene.