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A platinum wire can be sealed through glass, but a brass wire cannot be sealed in glass because

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By Expert Faculty of Sri Chaitanya
a
Platinum has greater density than brass
b
Platinum and glass have the same value of  coefficient of linear expansion
c
Platinum is an element while brass is alloy
d
Platinum does not rust
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detailed solution

Correct option is B

platinum and glass have same coefficient of volume expansion


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