Atoms and Elements Quiz Questions and Answers PDF Download eBook
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Quiz on Atoms & Elements PDF Download eBook
MCQ: Symbol of Magnesium is
MCQ: In Universal indicators, a pH of 7 is shown with
- yellow color
- green color
- blue color
- pink color
MCQ: The formula of copper carbonate is
MCQ: Old paintings can be restored through an oxidizing agent
MCQ: Weak electrolytes include which of the following?
- limewater Ca(OH)2
- ammonia solution NH3
- Carbonic acid H2CO3
- all of above