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Metals and Non-Metals — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceMetals and Non-Metals1 Mark
MCQ
The elements whose oxides can turn litmus solution blue are :
  • A
    Carbon and sulphur.
  • B
    Sodium and carbon.
  • ✓
    Potassium and magnesium.
  • D
    Magnesium and sulphur.
✓

Answer

Correct option: C.
Potassium and magnesium.
Potassium and magnesium are metals whose oxides are basic in nature. These oxides turn red litmus solution to blue.

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