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For making good quality mirrors, the pla...

For making good quality mirrors, the plates of flint glass are used. These are obtained by floating molten glass over a liquid metal which does not solidify before glass. The metal used can be

A

`Sn`

B

`Mg`

C

`Hg`

D

`Na`

Text Solution

Verified by Experts

The correct Answer is:
A
Only the melting point of `Sn(232^(@)C)` is lower than that of glass.
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