JEE Main · 2020 · Shift-IIeasyDNF-272

The incorrect statement(s) among (a) - (c) is (are) : (a) W(VI) is more stable than Cr(VI). (b) in the presence of HCl,…

d & f-Block Elements · Class 12 · JEE Main Previous Year Question

Question

The incorrect statement(s) among (a) - (c) is (are) : (a) W(VI) is more stable than Cr(VI). (b) in the presence of \ceHCl\ce{HCl}, permanganate titrations provide satisfactory results. (c) some lanthanoid oxides can be used as phosphors (1) (b) and (c) only (2) (a) and (b) only (3) (b) only (4) (a) only

Options
  1. a

    (b) and (c) only

  2. b

    (a) and (b) only

  3. c

    (b) only

  4. d

    (a) only

Correct Answerc

(b) only

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The incorrect statement(s) among (a) - (c) is (are) : (a) W(VI) is more stable than Cr(VI). (b) in… (JEE Main 2020) | Canvas Classes