Occurrence of metals

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Concepts tested here

  • Nitrates in ores
  • Ores of iron

All Questions

2015 AIPMT-I 1 question

  1. 1 General Principles and Processes of Isolation of Elements
    ''Metals are usually not found as nitrates in their ores''. Out of the following two (a and b) reasons which is/are true for the above observation? (a) Metal nitrates are highly unstable (b) Metal nitrates are highly soluble in water

2012 AIPMT-PRE 1 question

  1. 2 General Principles and Processes of Isolation of Elements
    Which one of the following is a mineral of iron?