NEET 2011
- Exam
- NEET
- Year
- 2011
- Subject
- Chemistry
- Chapter
- d and f Block Elements
NEET 2011 · Chemistry · d and f Block Elements
Acidified K_2 Cr_2 O_7 solution turms green when Na_2 SO_3 is added...
Acidified solution turms green when is added to it. This is due to the formation of
Options
- A
- B
- C
- D
Correct answer
D.
Step-by-step solution
\begin{array}{r}\mathrm{K}_{2} \mathrm{Cr}}_{2} \mathrm{O}_{7}+3 \mathrm{Na}}_{2} \mathrm{SO}_{3}+4 \mathrm{H}}_{2} \mathrm{SO}_{4} \longrightarrow 3 \mathrm{Na}}_{2} \mathrm{SO}_{4} \\
+\mathrm{K}}_{2} \mathrm{SO}_{4}+ \mathrm{Cr}}_{2}\left(\mathrm{SO}_{4}\right)_3+4 \mathrm{H}}_{2} \mathrm{O}
\end{array}$$