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Question

Which of the given alkaline earth metal is hardest of all alkaline earth metals?

A
Mg
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B
Ca
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C
Be
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D
Sr
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Solution

The correct option is C Be
Option (C) is correct.
Be is hardest of all alkaline earth metals.
Beryllium is a hard, brittle metal with a greyish-white surface.It has a high heat capacity (it can store heat) and heat conductivity (it can transfer heat efficiently).

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