In a titration experiment, $10 \,mL$ of an $FeCl _{2}$ solution consumed $25\, mL$ of a standard $K _{2} Cr _{2} O _{7}$ solution to reach the equivalent point. The standard $K _{2} Cr _{2} O _{7}$ solution is prepared by dissolving $1.225\, g$ of $K _{2} Cr _{2} O _{7}$ in $250 \,mL$ water. The concentration of the $FeCl _{2}$ solution is closest to $.....\, N$
[Given : molecular weight of $K _{2} Cr _{2} O _{7}=294 \,g\, mol ^{-1}$ ]

  • [KVPY 2019]
  • A
    $0.25$
  • B
    $0.50$
  • C
    $0.10$
  • D
    $0.04$

Similar Questions

By annealing, steel

Which of the following set of elements does not belong to transitional elements set

For the first row transition metals the ${E^\Theta }$ values are: 

${E^\Theta }$ $V$ $Cr$ $Mn$ $Fe$ $Co$ $Ni$ $Cu$
$\left( {{M^{2 + }}/M} \right)$ $-1.18$ $-0.91$ $-1.18$ $-0.44$ $-0.28$ $-0.25$ $+0.35$

Explain the irregularity in the above values.

Which diagram of ionization energy is correct ?

Which of the following ions has the maximum magnetic moment