Dead burnt plaster is

  • A
    $CaSO_4$
  • B
    $CaSO_4 \cdot \frac{1}{2} H_2O$
  • C
    $CaSO_4 \cdot H_2O$
  • D
    $CaSO_4 \cdot 2 H_2O$

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Column-$I$Column-$II$
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-$(s)$ Yellow

Which among the following elements of group-$2$ exhibits anomalous properties?

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