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Metals and Non-Metals — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceMetals and Non-Metals1 Mark
Question
The elements whose oxides can turn phenolphthalein solution pink are:
  1. Na and K.
  2. K and C.
  3. Na and S.
  4. K and P.
✓

Answer

  1. Na and K.

Explanation:

Because Na and K are metals whose oxides are basic in nature, which can turn phenolphthalein solution pink.

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