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Which statement is incorrect for a catalyst?

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Important Questions on Surface Chemistry

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Surface Chemistry>GUJCET 2018 (Medical)>Q 3
In manufacturing of sulphuric acid in presence of platinum catalyst, which metal impurity acts as catalytic poison?
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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Surface Chemistry>GUJCET 2018 (Medical)>Q 4
During electrophoresis of colloidal sol of Fe(OH)3, the colloidal particles
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GUJCET
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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Surface Chemistry>GUJCET 2017 (Medical)>Q 5
In which emulsion coloured droplets are obtained when oil soluble dye is added to it?