Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

D and F Block Elements question

2008 · Shift 0 · Q11
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /D and F Block Elements
  5. /2008 · Shift 0 · Q11

D and F Block Elements question

2008 · Shift 0 · Q11

JEE MainChemistryD and F Block ElementsMCQ+4 / −1
Amount of oxalic acid present in a solution can be determined by its titration with KMnO4KMn{O_4}KMnO4​ solution in the presence of H2SO4.{H_2}S{O_4}.H2​SO4​. The titration gives unsatisfactory result when carried out in the presence of HCl,HCl,HCl, because HClHClHCl :
  1. A
    gets oxidised by oxalic acid to chlorine
  2. B
    furnishes H+{H^ + }H+ ions in addition to those from oxalic acid
  3. C
    reduces permanganate to Mn2+M{n^{2 + }}Mn2+
  4. D
    oxaidises oxalic acid to carbon doxide and water
PreviousNext

More from D and F Block Elements

  • Larger number of oxidation states are exhibited by the actinoids than those by the lanthanoids, the main reason being :2008 · MCQ
  • The actinoids exhibits more number of oxidation states in general than the lanthanoids. This is because :2007 · MCQ
  • Identify the incorrect statement among the following :2007 · MCQ
  • A metal, M forms chlorides in its +2 and +4 oxidation states. Which of the following statements about these chlorides is correct?2006 · MCQ
  • The “spin-only” magnetic moment [in units of Bohr magneton, (µB)] of Ni2+ in aqueous solution would be : (Atomic number of Ni = 28)2006 · MCQ
  • Lanthanoid contraction is caused due to :2006 · MCQ
  • The oxidation state of chromium in the final product formed the reaction between KI and acidified potassium dichromate solution is :2005 · MCQ
  • On heating mixture of Cu2​O and Cu2​S will give :2005 · MCQ