ABC26PH1423 · Surface Chemistry
Subject: Physical Chemistry · Chapter: Surface Chemistry · Topic: Colloids Micelles · Exam: NET DEC 2013 · Marks: 2 · Difficulty: Medium
Michael Faraday observed that the colour of colloidal suspensions of gold nanoparticles changes with the size of the nano particles. This is because
(a)gold forms complex with the solvent
(b)band gap of gold changes with size of the nanoparticle
(c)gold in nanocrystalline form undergoes transmutation to other elements
(d)colloidal suspensions diffract light
Answer
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