MHT CET 2024 Chemistry question

Not in JEE or NEET syllabus

Which of the following techniques is used for preliminary conformation of nanoparticles?

(A)UV – visible spectroscopyCorrect
(B)X ray diffraction
(C)Scanning electron microscopy
(D)Transmission electron microscopy

Answer: (A)

Solution

In the characterisation of nanomaterials, UV-visible spectroscopy is the quick, simple first test: metal nanoparticles (e.g. gold, silver) show a characteristic surface plasmon resonance absorption band, and its position and shape give preliminary confirmation that nanoparticles have

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Question ID VK-092778