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Periodic Table and Periodicity · 2019 · 9 Jan · Shift 1

2 Chemistry questions from this JEE Main paper
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Periodic Table and Periodicity · 2019 · 9 Jan · Shift 1

2 Chemistry questions from this JEE Main paper

  1. Q19.Aluminium is usually found in +3 oxidation state. In contrast, thallium exists in + 1 and + 3 oxidation states. This is due to :
    Chemistry · Periodic Table and Periodicity · MCQ
  2. Q20.In general, the properties that decrease and increase down a group in the periodic table, respectively, are :
    Chemistry · Periodic Table and Periodicity · MCQ