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Chemistry
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Surface Chemistry
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Surface Chemistry
Easy Questions
Chemistry
Nature and Composition of Substances
Atomic Structure
Radioactivity
Periodic classification of element
Chemistry in Every Day Life
Biomolecules
Hydrocarbons and Its Derivatives
Non Metals and Their Compounds
Metals and Their Compounds
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Acids, Bases and Salt
Oxidation and Reduction
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Chemistry miscellaneous
Which of the following colloidal solution is commonly used as germ killer ?
Colloidal sulphur
Colloidal gold
Colloidal silver
colloidal antimony
Correct Option:
A
NA
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