IGCSE O Level Chemistry Practice Test 163
Chemical to Electrical Energy Quiz Questions with Answers PDF Download - 163
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Chemical to Electrical Energy Quiz with Answers PDF Download: MCQs 163
In a magnesium-copper battery with dilute acid as the electrolyte, the
- bulb can stay bright for very long
- duration of bulb brightness is shorter
- bulb gets dimmer
- bulb cannot be lighten up
Which is true about Inert gases?
- they have 1-3 valence electrons
- they have 4-7 valence electrons
- they have stable valence electrons in outermost shells
- they have up to 10 valence electrons
Formula Ca(OH)2 is of
- Calcium Hydrogen per oxide
- calcium hydroxy acids
- calcium hydrogen peroxide
- calcium hydroxide
In H2SO4, the chemical composition of oxygen is
- 0.1111
- 0.5032
- 0.6531
- 0.3265
Magnesium Oxide (MgO) is formed through
- two magnesium ions and one oxygen ion
- one magnesium ion and one oxygen ion
- two magnesium ions and two oxygen ion
- one magnesium ion and two oxygen ion
IGCSE O Level Chemistry Exam Prep Tests
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