Academic Quiz: Science and Technology, Chemistry
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Academic Quiz: Science and Technology, Part-2, Chemistry ### Question 11: **What is the chemical symbol for gold?** a) Au b) Ag c) Pb d) Fe **Answer:** a) Au **Explanation:** The chemical symbol for gold is Au, which comes from the Latin word 'Aurum,' meaning shining dawn. --- ### Question 12: **What is the most abundant element in the Earth's atmosphere?** a) Oxygen b) Nitrogen c) Carbon dioxide d) Argon **Answer:** b) Nitrogen **Explanation:** Nitrogen makes up about 78% of the Earth's atmosphere, making it the most abundant element. --- ### Question 13: **What is the pH value of pure water?** a) 5 b) 7 c) 8 d) 10 **Answer:** b) 7 **Explanation:** Pure water has a neutral pH of 7, which is neither acidic nor basic. --- ### Question 14: **What is the process by which plants convert sunlight into chemical energy?** a) Respiration b) Photosynthesis c) Fermentation d) Transpiration **Answer:** b) Photosynthesis **Explanation:** Photosynthesis is the p