2nd PUC Mathematics Series -4

PUC Science 2nd Year Mathematics Series-4 quiz

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Created on By wefru

2nd PUC Chemistry Series 4

TEST YOUR KNOWLEDGE OF SCIENCE

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31. The potential difference between the fixed charged layer and the diffused layer having opposite charge is called

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32. Peptization is a process of

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33. An emulsifier is a substance which

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34. The electrolytic reduction technique is used in the extraction of

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35.  In the commercial electrochemical process for aluminium extraction, electrolyte used is

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36. Which ore can be best concentrated by froth floatation process?

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37. Electrolytic reduction of Al2O3 to Al by Hall- Herault process is carried out

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38. The chemical composition of ‘slag’ formed during the melting process in the extraction of copper is

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39. Bessemer converter is used in the manufacture of

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40. The method of zone refining of metals is based on the principle of

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