MCQ
${K_2}C{r_2}{O_7}\xrightarrow{\Delta }A + B + C$
$B$ is green colored compound then it would be
- A$K_2CrO_4$
- ✓$Cr_2O_3$
- C$CrO_3$
- D$O_2$
✓
Answer
Correct option: B.
$Cr_2O_3$
b
$\begin{gathered}
{K_2}C{r_2}{O_7} \to {K_2}Cr{O_4} + C{r_2}{O_3} + {O_2} \hfill \\
\,\,\,\,\,{\text{Green Color compound}} \hfill \\
\end{gathered} $
$\begin{gathered}
{K_2}C{r_2}{O_7} \to {K_2}Cr{O_4} + C{r_2}{O_3} + {O_2} \hfill \\
\,\,\,\,\,{\text{Green Color compound}} \hfill \\
\end{gathered} $
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
The reagent which easily reacts with ethanol and propanol is
At higher altitude, boiling point of water is $95\,^oC$. The amount of $NaCl$ added to $1\, kg$ of water $(K_b = 0.52\, K\, mol^{-1}\,kg)$ in order to raise the boiling point of solution to $100\,^oC$ (assuming $90\%$ ionisation of $NaCl$) ........... $g$
→Product $(A)$ and $(B)$ respectively are :-
→Select correct about $PtCl_4. 4NH_3$ complex salt
→$I.$ All the chlorides are bonded by primary valency
$II.$ All the chlorides are bonded by secondary valency
$III.$ All the $NH_3$ are bonded by secondary valency
$IV.$ Half of the chlorides are bonded with secondary valency
The oxidation states of $'P'$ in $\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{7}, \mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{5}$ and $\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{6}$, respectively, are:
→Which of the following pyrimidine base present in $RNA $ ?
→Ionic conductance of $Ga^{+3}$ ions and $NO_3^-$ ions at infinite dilution are $120\, \Omega^{-1} \,cm^2\, mol^{-1}$ and $50\, \Omega^{-1} \,cm^2 \,mol^{-1}$ respectively. Equivalent conductance of $Ga(NO_3)_3$ at infinite dilution will be ........... ${\Omega ^{ - 1}}{\rm{c}}{{\rm{m}}^2}{\rm{e}}{{\rm{q}}^{ - 1}}$
→The correct IUPAC name of [Pt(NH3)2Cl2] is:
The vapour pressure of a solvent decreased by $10\,mm$ of mercury, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is $0.2.$ What should be the mole fraction of the solvent, if decrease in the vapour pressure is to be $20\,mm$ of mercury
→In the reaction Product $[X]$ will be
→