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Question

Which of the following possess lustre?

A
Silver
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B
Platinum
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C
Mercury
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D
All of above
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Solution

The correct option is D All of above
A, B and C are all metals with free electrons. Light does not penetrate very far into the surface of a metal and is typically reflected or bounced off the metallic surface by the mobile electrons and what you get is a metallic reflection, which is known as lustre.

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