Question

How to catogaries whether an oxide is acidic or basic?

Answer 1

Answer:

Explanation:

Generally, Oxides of NonMetals are Acidic, Metallic are Basic and Metalloid Oxides are Amphoteric. Amphoteric are those who display both metallic and non metallic properties. Moving a period across left to right, will give you increasing oxide nature and decreasing basic nature.

Answer 2

We can use different indicators like litmus paper, methyl orange or phenolphthalein.

1. Oxides are mainly basic in nature so they will turn red litmus paper blue.

2. Methyl orange indicator gives red colour in acidic solution whereas yellow colour for basic solution.

3. Phenolphthalein indicator is colourless in acid whereas it turns pink in basic solution

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