Question

33. Metals which are amphoteric in nature -
34. An alloy of copper and zinc -
35. Two highly reactive metals -
36. Strongly heating carbonate ores in insufficient air
37. Extraction of aluminium from alumina-
38. Method used to present corrosion of copper​

Answer 1

Answer:

33. many metals ( such as zinc,tin, lead, aluminium and beryllium) from amphoterism depends on the the oxidation states of the oxide.Al2 o3amphoteric oxide.

Explanation:

34. Brass is an alloy of copper and zinc, in proportion which can be varied to achieve varying mechanical and electrical properties..

35. solution. sodiul (NA) and potassium (K) are the two very reactive metals belonging to group 1 of the periodic table.

36. don't know

37. g go gya high f fig go j

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