When a small amount of sodium metal is dissol | vedclass

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Question

(D) When sodium dissolves in liquid ammonia,it forms ammoniated electrons and ammoniated sodium ions: $Na + (x+y)NH_3 \rightarrow [Na(NH_3)_x]^+ + [e(

Vedclass · Accepted Answer

The liquid ammonia remains diamagnetic.

Vedclass · Answer

(D) When sodium dissolves in liquid ammonia,it forms ammoniated electrons and ammoniated sodium ions: $Na + (x+y)NH_3 \rightarrow [Na(NH_3)_x]^+ + [e(NH_3)_y]^-$. The blue color and electrical conductivity are due to the presence of ammoniated electrons. The presence of unpaired electrons makes the solution paramagnetic,not diamagnetic. Therefore,the statement that the solution remains diamagnetic is incorrect.

Elements	Flame Color
$1$. $Li$	$a$. Yellow
$2$. $Na$	$b$. Red-violet
$3$. $Rb$	$c$. Blue
$4$. $Cs$	$d$. Crimson red

When a small amount of sodium metal is dissolved in liquid ammonia at low temperature,which of the following does $NOT$ occur?

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Match the following:
Elements Flame Color
$1$. $Li$ $a$. Yellow
$2$. $Na$ $b$. Red-violet
$3$. $Rb$ $c$. Blue
$4$. $Cs$ $d$. Crimson red

Which of the following elements release $H_2$ gas on reaction with $NaOH$?

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