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Which two gases are evolved when ferrous...

Which two gases are evolved when ferrous sulphate is heated ?

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Sulphur dioxide and sulphur trioxide.
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ZEN PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS-ZEN ADDITIONAL QUESTIONS SECTION (VERY - SHORT - ANSWER [VSA] TYPE QUESTIONS )
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  9. Which two gases are evolved when ferrous sulphate is heated ?

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  10. What is a redox reaction ?

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