Metals and non metals Worksheet-11

Metals and non metals Worksheet-11

One Words Questions:

21. Which of the two metals is more reactive Copper or Silver?

22. What will be the product formed when copper sulphate reacts with zinc?

23. Name a metal which cannot displace Hydrogen from acids.

24. What are the products formed when silver metal rod is placed in copper sulphate solution?

25. In a solution of silver nitrate a copper plate dipped. After some time silver from the solution was deposited on copper plate. Which metal is more reactive silver or copper.

26. The name of Al₂O₃.2H₂O is

27. The name of ZnCO₃ is

28. The name of Fe₂O₃ is

29. The name of Cu₂O is

30. The name of HgS is

31. The name of ZnS is

32. The name of AgCl is

33. The name of CuFe₂ is

34. The name of CuCO₃.Cu(OH)₂ is

35. The name of MgCO₃.CaCO₃ is

36. The impurities like sand, rocky, material present in the ore is called-

37. Name a metal which is highly resistant to corrosion.

38. Which method is used for concentrating Bauxite?

39. Calamine is oxidised by

40. During electrolytic reduction metal is obtained at

Answer key:

21. Copper

22. Zinc Sulphate, Copper(s)

23. Copper/Mercury/Silver/Gold

24. No reaction.

25. Copper

26. Bauxite

27. Calamine

28. Haematite

29. Cuprite

30. Cinnabar

31. Zinc blende

32. Horn silver

33. Copper pyrites

34. Malachite

35. Dolomite

36. Gangue

37. Aluminium/silver/gold

38. Gravity Separation

39. Calcination

40. Cathode