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Chemistry General Knowledge Multiple Choice Quiz
Can you answer these chemistry multiple-choice general knowledge questions?
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Last updated: September 26, 2021
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| First submitted | September 26, 2021 |
| Times taken | 365 |
| Average score | 70.0% | Report this quiz | Report |
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1. How many electrons does a single oxygen atom have (oxidation state 0)?
Oxygen is element number 8, so has 8 electrons.
6
7
8
9
2. Which of the halogens (group 7(17)) is solid under standard conditions (0 °C / 32 °F, 100 kPa / 1 bar)?
Fluorine and Chlorine are gasses, Bromine is liquid and Iodine is solid.
Fluorine
Chlorine
Bromine
Iodine
3. What do you call an atom that has more protons than electrons?
If an atom has more protons than electrons it has a net positive charge, which is referred to as a cation (pronounced cat-ion)
Cation
Isotope
Anion
Element
4. Which hazard symbol means oxidising?
(a) Flammable, (b) Corrosive, (c) Oxidising, (d) Harmful to the environment
5. If you fill a glass to the brim with ice water and the ice melts, what will happen?
Water is less dense as a solid, so as it melts it occupies less space, so the water level will decrease.
The glass will over flow as the ice melts
The level of the water in the glass will remain unchanged as the ice melts
The water level will drop slightly as the ice melts
6. Which is not a nobel gas?
Radium is a group 2 element. Radon is a similarly named element that is a nobel gas.
Radium
Krypton
Xenon
Neon
7. Which of these items of glassware is called a Buchner flask?
8. The pH scale describes how acidic or basic a substance is. Which of these pH values would be considered acidic?
The pH scale ranges from 0 to 14. 7 is neutal pH, less than 7 is acidic and greater than 7 is basic/alkaline.
1
7
14
9. Which element is diamond made from?
Silicon
Carbon
Oxygen
Calcium
10. Which gas has the highest proportion in the atmosphere?
Nitrogen makes up 78%, oxygen takes up 21%, carbon dioxide takes up about 0.04% and ozone takes up about 0.00006%
Oxygen
Carbon Dioxide
Nitrogen
Ozone
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