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Mini Upadhyaya from RYAN INTERNATIONAL SCHOOL, asked a question
Subject: Science , asked on 30/8/11

Are all metal oxides alkaline in nature?

EXPERT ANSWER

prerna.bansal... , Meritnation Expert added an answer, on 31/8/11

Hi,

 

Most of the metallic oxides are basic in nature. They react with water to form alkali.Not all metallic oxides are basic, some are amphoteric.

For e.g.    Na2O   +   H2O       2NaOH

 

Hope it helps.

Cheers!

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Riya Punjabi From Our Own English High School, added an answer, on 30/8/11
169 helpful votes in Science

aLL METALLIC OXIDES ARE BASIC IN NATURE. ALL NON-METALLIC OXIDES ARE ACIDIC IN NATURE.

 

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Mystic Anjel , added an answer, on 30/8/11
432 helpful votes in Science

 Yes, not only 1st and 2nd group elemet oxides, oxides and hydroxides of all the metals are alkaline in nature.Depend upon the metallic nature its basic nature will depend, for example first group elements are more electropossitive in nature than other metals. So their oxides and hydroxides are more basic than second group, similarly as we moving down the group metallic nature of elements increases so their oxides alkaline nature also increses. Oxides and hydroxides of Na are more basic than oxides and hydroxides of Li. Here hydrogen being a rogue element and although it is in 1st group it is not a metal, so its oxide nature is different. Be is is diagonal relationship with Al so its oxides and hydroxides are amphoteric.

hope it helps..

cheers!!

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