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(i) Prepare sulphur dioxide by burning sulphur in air. Put powdered sulphur in a porcelain jar;
ignite it and collecting the gas formed in a funnel. Aspirate the gas into a bottle containing
water.
(ii) Prepare sulphur dioxide in a generator which allows dilute sulphuric or hydrochloric acid
to drip slowly on to sodium sulphate. The acid is contained in a thistle funnel and a tap
controls the flow on to sodium sulphite in a suitable flask. The sulphur dioxide produced can
be collected in gas jars covered with cardboard discs, which have central holes for the
delivery tube.
sharon kalunda answered the question on April 12, 2019 at 08:38
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