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D and F Block Elements question

2021 · 24 Feb · Shift 2 · Q2
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D and F Block Elements question

2021 · 24 Feb · Shift 2 · Q2

JEE MainChemistryD and F Block ElementsMCQ+4 / −1
The incorrect statement among the following is :
  1. A
    RuO4RuO_4RuO4​ is an oxidizing agent
  2. B
    Cr2O3Cr_2O_3Cr2​O3​ is an amphoteric oxide.
  3. C
    VOSO4VOSO_4VOSO4​ is a reducing agent
  4. D
    Red colour of ruby is due to the presence of Co3+Co^{3+}Co3+
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