MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic Chemistryp -Block Elements (group 15-18)Same gas, different phosphates

A solution of sodium in liquid ammonia is blue due to the presence of

A.solvated electrons✓ Correct

B.ammonium ions

C.solvated sodium ions

D.sodium atoms

Explanation

Sodium dissolves in ammonia without dissolution of hydrogen, colour of solution is blue. Metal atom loses electron & combines with ammonia molecule. + - + 3 3 3 M M in liq. ammonia + e ammoniated M+ x+y NH M NH + e NH x y -> ->

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