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Question

Metals, except Al and Zn, react with oxygen to form _______ oxides.


A

acidic

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B

basic

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C

amphoteric

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D

neutral

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Solution

The correct option is B

basic


Most of the metals react with oxygen to form metal oxides.

For example: magnesium reacts with oxygen to form magnesium oxide. The reaction involved is:

2Mg(s)+O2(g)2MgO(s)

The metal oxide form alkali solution when dissolved in water. This solution turns red litmus paper to blue. Hence, these metal oxides are basic in nature.


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