A) On passing \[{{\text{H}}_{\text{2}}}\text{S}\] through acidified \[{{\text{k}}_{\text{2}}}\text{C}{{\text{r}}_{\text{2}}}{{\text{O}}_{\text{7}}}\] solution, a milky colour is observed
B) \[\text{N}{{\text{a}}_{\text{2}}}\text{C}{{\text{r}}_{\text{2}}}{{\text{O}}_{\text{7}}}\]is preferred over \[{{\text{K}}_{\text{2}}}\text{C}{{\text{r}}_{\text{2}}}{{\text{O}}_{\text{7}}}\] in volumetric analysis
C) \[{{\text{K}}_{\text{2}}}\text{C}{{\text{r}}_{\text{2}}}{{\text{O}}_{\text{7}}}\] solution in acidic medium is orange
D) \[{{\text{K}}_{\text{2}}}\text{C}{{\text{r}}_{\text{2}}}{{\text{O}}_{\text{7}}}\] solution becomes yellow on increasing the pH beyond 7
Correct Answer: D
Solution :
[d] Being hygroscopic, sodium dichromate, \[N{{a}_{2}}C{{r}_{2}}{{O}_{7}}\] cannot be used in volumetric analysis All other given statements are true.
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