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प्रश्न
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
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उत्तर
(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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संबंधित प्रश्न
The solution of Aluminium sulphate in water is .....................
(a) Green
(b) Colourless
(c) Pink
(d) Blue
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(ii) another which does not react even with steam.
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Na + O2 →
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(a) Na
(b) C
(c) Ca
(d) H
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(a) What is the nature of oxide XO?
(b) What is the nature of oxide XO2?
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(d) Can you give an example of element like X?
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