IGCSE O Level Chemistry Practice Test 5
Atoms and Elements Quiz Questions and Answers PDF Download - 5
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Atoms & Elements Questions and Answers PDF Download: MCQ 5
Brass is an example of an/a
- alloy
- compound
- mixture
- element
If acidified Potassium Dichromate(VI) (K2Cr2O7) acts as oxidizing agent, color changes from
- orange to red
- orange to green
- yellow to green
- yellow to red
A particle maybe a/an
- atom
- molecule
- isotope
- all of above
If the proton (p+) number of an element changes, it will become a/an
- isotope
- another element
- electrolyte
- none of above
Aluminum (Al) is preferred in overhead power cables because
- it is a good conductor
- it acts as an insulator, in case of lightening
- it prevents accidents
- it is lighter in weight
IGCSE O Level Chemistry Exam Prep Tests
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