IGCSE O Level Chemistry Practice Test 88
Valence Electrons Multiple Choice Questions (MCQs) PDF Download - 88
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Valence Electrons MCQ Quiz with Answers PDF Download: Test 88
The first element in the periodic table to have 8 valence electrons in the third shell is
- silicon
- chlorine
- argon
- potassium
Exothermic reactions do not include
- upon heating, hydrogen results in water
- neutralization of acids and alkalis
- respiration
- breaking of chemical bond
What is true about mineral acids?
- they have simpler structures
- they are naturally occurring
- they are less corrosive
- none of above
What is true about Brass?
- it is a combination of nitrogen and sulphur
- a combination of copper and zinc
- it is a combination of copper and tin
- it is an alloy
While forming soluble salts, acid is added to the metal until there is no more
- precipitation
- polymerization
- H2 gas
- saturation
IGCSE O Level Chemistry Exam Prep Tests
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