Solve the Chemistry Puzzle - Test your Knowledge

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Across
  1. 4. ...is an acid- base indicator
  2. 5. Pigment found in Tomatoes
  3. 9. wear a mask to protect yourself against.......
  4. 11. Oxidation of aldehydes gives...
  5. 13. A chemical compound also known as baking soda
  6. 17. measure of Hydrogen ion concentration
  7. 18. Metallic substance composed of two or more elements
  8. 20. A Process involving the reaction of triglycerides in fat/oil with aq NaOH or KOH,to form soap and glycerol.
  9. 21. sodiumhypochlorite is often referred as
Down
  1. 1. Polar Solvent
  2. 2. A process where light energy is converted to chemical energy by plants and other organisms
  3. 3. laughing gas
  4. 6. Technique used for separation of mixture
  5. 7. Commonly used as antiseptic
  6. 8. ......is a type of Self indicator
  7. 10. Polymerisation of ethylene gives
  8. 12. ....is used in Hair dyes
  9. 14. Pigment that gives green color to plants
  10. 15. Chemical element with atomic number 38
  11. 16. is a type of COVID 19 Vaccine
  12. 19. AlCl3 acts as