Which of the following is more paramagnetic
Which of the following is more paramagnetic
- A
$F{e^{ + 2}}$
- B
$F{e^{ + 3}}$
- C
$C{r^{ + 3}}$
- D
$M{n^{ + 3}}$
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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 $K _{2} Cr _{2} O _{7}=294 \,g\, mol ^{-1}$ ]
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- [KVPY 2019]
Write a note on halide compounds of transition elements.
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Which of the following compounds is not coloured ?
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