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Questions and Answers
What is the size range of colloidal particles in a colloidal solution?
What is the size range of colloidal particles in a colloidal solution?
- 10^-9 - 10^-12 m
- 10^-12 - 10^-19 m
- 10^-6 - 10^-9 m (correct)
- 10^-19 - 10^-22 m
Which metal is extracted through the MacArthur method?
Which metal is extracted through the MacArthur method?
- Cu
- Au
- Ag (correct)
- Fe
Why is KCl used in a salt bridge?
Why is KCl used in a salt bridge?
- The conductivities of K+ and Cl- ions are almost equal (correct)
- It forms a thick solution with gelatin
- It is an electrolyte
- It is a good conductor of electricity
What is milk classified as?
What is milk classified as?
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Which type of catalysis involves a catalyst that is in a different phase from the reactants?
Which type of catalysis involves a catalyst that is in a different phase from the reactants?
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In the smelting method for the extraction of iron metal, which chemical composition forms the slag?
In the smelting method for the extraction of iron metal, which chemical composition forms the slag?
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What metal is used to heat an electric iron?
What metal is used to heat an electric iron?
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Which radioactive element has large reserves found in India?
Which radioactive element has large reserves found in India?
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Which compound is commonly used in mouthwashes and toothpastes?
Which compound is commonly used in mouthwashes and toothpastes?
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What is ultimately formed as a result of radioactive electrification of uranium?
What is ultimately formed as a result of radioactive electrification of uranium?
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