Single Choice

Potassium is kept in

AAlcohol
BWater
CKerosene
Correct Answer
DLiquid ammonia

Solution

Alkali metals are highly reactive metals. They react with

Alcohol - $$2C_2H_5OH+2K \rightarrow 2C_2H_5OK+H_2$$

Water - $$2K+2H_2O \rightarrow 2KOH+H_2$$

Ammonia - $$K+(x+y)NH_3 \rightarrow \underset {Ammoniated \ cation}{[K(NH_3)_x]^+ }+ \underset {Ammoniated \ electron}{[e(NH_3)_y]^-}$$

But they do not react with kerosene.

SIMILAR QUESTIONS

s - block Elements (Alkali and Alkaline Earth Metals)

Sodium burns in excess air to give mainly:

s - block Elements (Alkali and Alkaline Earth Metals)

Caustic alkalis are corrosive.

s - block Elements (Alkali and Alkaline Earth Metals)

Sodium metal cannot be stored under

s - block Elements (Alkali and Alkaline Earth Metals)

The violet flame shown by potassium in Bunsen flame is due to jumping of the electron from :

s - block Elements (Alkali and Alkaline Earth Metals)

A metal which does not react with nitrogen is:

s - block Elements (Alkali and Alkaline Earth Metals)

Why is calcium preferred over sodium to remove the last traces of moisture from alcohol?

s - block Elements (Alkali and Alkaline Earth Metals)

Why is sodium metal kept under kerosene oil ?

s - block Elements (Alkali and Alkaline Earth Metals)

Why is calcium preferred over sodium to remove last traces of moisture from alcohol?

s - block Elements (Alkali and Alkaline Earth Metals)

The alkali metal that reacts with nitrogen directly to form nitride is:

s - block Elements (Alkali and Alkaline Earth Metals)

When sodium is heated in moist air, the ultimate product obtained is:

Contact Details