A student performs an experiment of burning magnesium ribbon in the air. A chemical reaction takes place and as a result, a white powder X forms along with a bright white light.
The aqueous solution of X changes _________.
A
red litmus to blue
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B
blue litmus to red
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C
red litmus to colourless
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D
blue litmus to colourless
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Solution
The correct option is A red litmus to blue Magnesium reacts with oxygen present in air and burns to produce powder of magnesium oxide(X) which is white in colour along with a bright flame.
Oxides of metals like magnesium are basic in nature. Aqueous solution of these oxides turn red litmus to blue.