C10 SK ACADEMY CHEM PUZZLE Ch1 By: Sonia Kumar

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Across
  1. 4. A method of prevention from corrosion
  2. 5. The colour of copper [II] oxide
  3. 7. The process of coating zinc over iron
  4. 8. The colour of Ferrous Sulphate Crystals
  5. 10. Respiration is considered of this type
  6. 12. In CuO + H2--> Cu + H2O, hydrogen is which agent
  7. 13. Heat is absorbed in this reaction
  8. 14. The cause of shiny finish on the walls is Calcium _______
  9. 15. spoilage of metals due to atmospheric contents
  10. 20. In this reaction more active element displaces less active element from its compound
  11. 23. Unbalanced Chemical Equation
  12. 24. The gas filled in chips packets to prevent from spoilage
Down
  1. 1. The oxidation of oil and fats leading to spoilage
  2. 2. Silver Sulphide coating makes silver
  3. 3. In this reaction two or more reactants combine to form a single product
  4. 6. In PbO + C--> Pb+ CO2,carbon is getting
  5. 9. In double displacement reaction _____ of ions takes place.
  6. 11. The solid settling down as the result of a chemical reaction
  7. 16. The most reactive element of reactivity series
  8. 17. Chemical Equations are balanced to satisfy this conservation law
  9. 18. The colour of aqueous copper sulphate solution
  10. 19. The colour of lead Iodide precipitate
  11. 21. Aqueous solution of Quick _____ is used for white wash.
  12. 22. The reaction in which oxidation and reduction take place simultaneously