Chemistry - Complete s-block Question with Solution | TestHub
ChemistryComplete s-blocks-block IIAMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
Several group-2 metals dissolve in excess of liquid NH3 and form solution. This solution is example of true solution.
Solution is bright blue coloured due to :
Options:
Answer:
B
Solution:
The blue colour is due to the presence of solvated (ammoniated) electrons released when metal dissolves in liquid ammonia.
These free electrons get stabilized in ammonia and absorb visible light, giving deep blue colour.
So, correct answer: (B) Solvated electrons.
Stream:JEESubject:ChemistryTopic:Complete s-blockSubtopic:s-block IIA
⏱ 2mℹ️ Source: QB
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