How will you prove the nature of non metal (sulphur) oxides ? [5 MARKS]

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Solution

Process : 2 Marks
Observation : 2 Marks
Inference : 1 Mark

(i) Take a small amount of powdered sulphur in a spoon and heat it.
(ii) As soon as sulphur starts burning, introduce the spoon into a gas jar/glass tumbler.
(iii) Remove the spoon after some time. Add a small quantity of water into the tumbler and shake well.
(iv) Check the solution with red and blue litmus papers. Since the blue litmus paper turns red thus oxide is acidic in nature.

$S u l p h u r d i o x i d e (S O_{2}) + W a t e r (H_{2} O) \to S u l p h u r o u s a c i d (H_{2} S O_{3})$

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