MHT CET 2023 Chemistry question

Not in JEE or NEET syllabus

Which from following nanoparticle catalysts is used in photocatalysis?

(A)Correct
(B)Pd
(C)Pt
(D)Au

Answer: (A)

Solution

Titanium dioxide () nanoparticles are semiconductor photocatalysts: on absorbing UV light they generate electron-hole pairs that produce reactive radicals which degrade organic pollutants, bacteria and dirt (self-cleaning glass, water purification). So (a) is

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Question ID VK-097264