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STD 12 - 4. d and f- block elements — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 - 4. d and f- block elements4 Marks
MCQ
Which of the following is not correct
  • A
    $Mn_2O_7$ gives $H_2MnO_4$ on reaction with water
  • B
    on heating $AgNO_3$ gives $Ag_2O$ and $NO_2$
  • C
    $V_2O_5$ gives $VO_4^{ -1}$ and $VO_4^{+3}$ on reaction with alkalies
  • ✓
    All are incorrect
✓

Answer

Correct option: D.
All are incorrect
d

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