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| 1. |
An amorphous solid ‘A’ burns in air to form a gas ‘B’ which turns lime water milky. The gas is also produced as a by-product during roasting of sulphide ore. This gas decolourises acidified aq. KMnO_(4) solution. Identify the solid ‘A’ and the gas ‘B’ and write the reaction involved. How is SO_(2) prepared in laboratory ? |
| Answer» Solution :`Na_(2)SO_(3)(s)+H_(2)SO_(4)(aq)rarrSO_(2)(g)+Na_(2)SO_(4)(aq)+H_(2)O(L)` | |