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Q.

Is it true that metal oxides are basic in nature?


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a

True

b

False  

answer is A.

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Detailed Solution

The above statement is true.
Metal oxides are basic in nature because they form bases when they react with water. Furthermore, the oxides turn moist red litmus paper blue and keep it blue. Oxides of sodium and potassium are soluble in water and form alkalis. So, these oxides are called basic oxides and the solutions of these oxides turn red litmus to blue.
4Na (s) + O2 (g)  →  Na2O (s)
 
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