Question

Solution of which of the following oxides in water will change the colour of blue litmus to red?



a..सल्फर डाइऑक्साइड Sulphur di oxide

b..मैग्नीशियम ऑक्साइड Magnisium oxide

c..आयरन ऑक्साइड Iron oxide

d...कॉपर ऑक्साइड Copper oxide

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Answer 1

Answer:

Acidic oxide turns blue litmus solution into red. Oxides can be prepared by thermal decomposition of carbonates, hydroxides and nitrates. Metal oxides react with acid to give salt and water.

Answer 2

Answer:

Magnesium oxide ............