Blue colour of alkali and alkaline earth metals in liquid NH3 is due to

Question

Blue colour of alkali and alkaline earth metals in liquid NH3 is due to (A) ammoniated complex cation (B) ammoniated e- (C) d-d transition (D) both (.A.) (.B.)

Tardigrade Admin · Accepted Answer

M arrow M++e- ( textM)+ ( text+yNH)3 arrow ([. textM (. ( textNH)3 .) texty ].)+ ( texte)- + ( textx NH)3 arrow ([ texte (( textNH)3) textx])- arrow ( textAmmoniated e)- blue coloured.

Q. Blue colour of alkali and alkaline earth metals in liquid $N H_{3}$ is due to

ammoniated complex cation

ammoniated $e^{-}$

$d - d$ transition

both $(A)$ $&$ $(B)$

$M \to M^{+} + e^{-}$
$(M)^{+} (+yNH)_{3} \to ([M ((NH)_{3})_{y}])^{+}$
$(e)^{-} + (x NH)_{3} \to ([e ((NH)_{3})_{x}])^{-} \to (Ammoniated e)^{-}$
blue coloured.

Q. Blue colour of alkali and alkaline earth metals in liquid NH3​ is due to

ammoniated complex cation

ammoniated e−

d−d transition

both (A) & (B)

M→M++e− (M)+(+yNH)3​→([M((NH)3​)y​])+ (e)−+(x NH)3​→([e((NH)3​)x​])−→(Ammoniated e)− blue coloured.

Q. Blue colour of alkali and alkaline earth metals in liquid $N H_{3}$ is due to

ammoniated $e^{-}$

$d - d$ transition

both $(A)$ $&$ $(B)$

$M \to M^{+} + e^{-}$
$(M)^{+} (+yNH)_{3} \to ([M ((NH)_{3})_{y}])^{+}$
$(e)^{-} + (x NH)_{3} \to ([e ((NH)_{3})_{x}])^{-} \to (Ammoniated e)^{-}$
blue coloured.