ICSE Class 10 Chemistry 2023 Solved Paper
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Choose the substances given in the box below to answer the following questions:
| Iron | Magnesium | Zinc | Sodium sulphide |
| Lead | Ferric chloride | Copper | Ferroussulphate |
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Question : 65
Total: 88
The compound that will produce sulphur dioxide gas when reacted with dilute HCI.
Solution:
Magnesium sulphite.
Dil. HCl. decomposes salts of weak acid, and form sulphurdioxide gas.
MgSO 3 + 2 HCl → MgCl 2 + H 2 O + SO 2 ↑
Dil. HCl. decomposes salts of weak acid, and form sulphurdioxide gas.
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