MCQ
The equivalent weight of ${K_2}C{r_2}{O_7}$ in acidic medium
- A$294$
- B$298$
- ✓$49$
- D$50$
✓
Answer
Correct option: C.
$49$
c
(c) ${K_2}C{r_2}{O_7} + 3{H_2}S{O_4}\, \to {K_2}S{O_4} + C{r_2}{(S{O_4})_3} + 3\,(O) + 3{H_2}$
(c) ${K_2}C{r_2}{O_7} + 3{H_2}S{O_4}\, \to {K_2}S{O_4} + C{r_2}{(S{O_4})_3} + 3\,(O) + 3{H_2}$
No. of electrons lossed $= 12 -6 = 6$
Equivalent weight $=\frac{M}{6} = \frac{{294}}{6} = 49$ .
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which cation has smallest radius
The $IR$ stretchin frequencies of free $CO,$ and $CO$ in $[V(CO)_6]^-, [Cr(CO)_6]^-$ and $[Mn(CO)_6]^-$ are $2143\,cm^{-1} , 1860\,cm^{-1} , 2000 \,cm^{-1}$ and $2090 \,cm^{-1}$ , respectively. Then correct statement about metal carbonyls is
→In the given reaction $[X]$ will be
→Iodoform on heating with $KOH$ gives
→Which of the following statements is correct for the boiling point of solvent containing a dissolved solid substance
Which of the following compound has electrovalent linkage
The maximum number of possible oxidation states of actinoids are shown by
In the given reaction sequence :
→$\begin{array}{*{20}{c}}
{C{H_2} - COOH} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_2} - COOH}
\end{array}\xrightarrow{\Delta }(A)\xrightarrow{{C{H_3} - C{H_2}N{H_2}/\Delta }}(B)$
$(B)$ will be :
Product $C$ is
→The extraction of nickel involves