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प्रश्न
A black coloured solid which on reaction with dilute sulphuric acid forms a blue coloured solution is ______.
विकल्प
Carbon
Manganese [IV] oxide
Lead [II] oxide
Copper [II] oxide
MCQ
रिक्त स्थान भरें
उत्तर
A black coloured solid which on reaction with dilute sulphuric acid forms a blue coloured solution is Copper [II] oxide.
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