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The Elements Whose Oxides Can Turn Litmus Solution Blue Are: (A) Carbon and Sulphur (B) Sodium and Carbon (C) Potassium and Magnesium (D) Magnesium and Sulphur - CBSE Class 10 - Science

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Question

The elements whose oxides can turn litmus solution blue are:
(a) carbon and sulphur
(b) sodium and carbon
(c) potassium and magnesium
(d) magnesium and sulphur

Solution

(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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Solution The Elements Whose Oxides Can Turn Litmus Solution Blue Are: (A) Carbon and Sulphur (B) Sodium and Carbon (C) Potassium and Magnesium (D) Magnesium and Sulphur Concept: Chemical Properties of Metals - When Metals React with Oxygen.
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