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Metals and Non-Metals — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceMetals and Non-Metals1 Mark
MCQ
An element $X$ is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in air. It reacts vigorously with water. Identify the element from the following
  • A
    $\ce{Mg}$
  • ✓
    $\ce{Na}$
  • C
    $\ce{P}$
  • D
    $\ce{Ca}$
✓

Answer

Correct option: B.
$\ce{Na}$

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