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

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