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National Science and Engineering Week Quiz
Page 1 of 6
Section 1: Chemistry
1.
What pH value corresponds to a neutral solution?
*
10
14
5.5
7
2.
Fe is the chemical symbol for which element?
*
Tungsten
Potassium
Iron
Fermium
3.
What type of acid is extracted from the juice of lemons, oranges, limes, and grapefruit?
*
Ethanoic
Hydrochloric
Citric
Sulphuric
4.
Sodium Chloride is better known as what common household substance?
*
Table Salt
Bleach
Caustic Soda
Vinegar
5.
Beta Carotene is the chemical responsible for the colour of which vegetable?
*
Beetroot
Carrots
Potatoes
Spinach