Welcome to your Chemistry Knowledge Builder Quiz
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1. What is the chemical formula of washing soda?
2. What is the hardest natural substance?
3. Which metal is the best conductor of electricity?
4. Which gas is used in fire extinguishers?
5. What is the valency of oxygen?
6. Which process converts a liquid into vapor below its boiling point?
7. Which element is a halogen?
8. What type of reaction is photosynthesis?
9. Which type of bond is present in sodium chloride?
10. Which process is used to remove impurities from metals?
11. Which branch of chemistry deals with the study of reaction rates?
12. What is the chemical name of baking soda?
13. Which type of reaction involves the combination of two or more substances to form a single product?
14. Which gas turns limewater milky?
15. Which element is required for rusting of iron?
16. Which of the following is a noble metal?
17. Which of the following is an example of a noble gas?
18. What is the pH value of a neutral solution at 25°C?
19. Which branch of chemistry deals with carbon compounds?
20. What is the SI unit of amount of substance?
21. Which gas is responsible for the greenhouse effect?
22. Which element is present in all organic compounds?
23. Which particle has a negative charge?
24. Which state of matter has a definite shape and volume?
25. What is the chemical symbol for potassium?