Chemistry · PYQ NEET UG 2023
हिन्दीGiven below are two statements : one is labelled as Assertion A and the other is labelled as Reason R : \n Assertion A : Metallic sodium dissolves in liquid ammonia giving a deep blue solution, which is paramagnetic.\nReasons R : The deep blue solution is due to the formation of amide.\nIn the light of the above statements, choose the correct answer from the options given below :
Correct answer · Option 3
A is true but R is false.
Explanation
Metallic sodium dissolves in liquid ammonia to form ammoniated electrons, which impart a deep blue color and paramagnetism. Thus, A is true, but R is false as the blue color is due to ammoniated electrons, not amide.