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Question

Chemistry Question on GROUP 1 ELEMENTS

Potassium is kept in

A

alcohol

B

water

C

kerosene

D

liquid ammonia

Answer

kerosene

Explanation

Solution

Alkali metals are highly reactive metals. They react with (a) Alcohol - 2C 2H5OH+2K→2C2H5OK+H2_{2} H _{5} OH +2 K \rightarrow 2 C _{2} H _{5} OK + H _{2} (b) Water - 2K+2H2O→2KOH+H22 K +2 H _{2} O \rightarrow 2 KOH + H _{2} (d) Ammonia : K+(x+y)NH3→[K(NH3)x]ammoniated cationK + (x + y)NH_3 \to \underset{\text{ammoniated cation}}{[K(NH_3)_x]} +[e(NH3)y]−ammoniated electron + \underset{\text{ammoniated electron}}{[e(NH_3)_y]^-}