Cr _ 2 O _ 7 ^ 2- reacts with OH – as Cr _ 2 O _ 7 ^ 2- +2 ( OH ^ - ) 2 CrO _ 4 ^ 2- + H…
Chemistry · JEE Main · NTA Exams — d- and f-Block Elements
\(\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}\)reacts with OH– as
\(\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}+2\left(\mathrm{OH}^{-}\right) \rightarrow 2 \mathrm{CrO}_{4}^{2-}+\mathrm{H}_{2} \mathrm{O}\)
The change in oxidation number of Cr is
\(\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}+2\left(\mathrm{OH}^{-}\right) \rightarrow 2 \mathrm{CrO}_{4}^{2-}+\mathrm{H}_{2} \mathrm{O}\)
The change in oxidation number of Cr is
- 6
- 3
- zero
- 4
Answer
(C) zero
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- Which of the following ions will exhibit colour in aqueous solutions?
- Which of the following ions is expected to be coloured in solution ?
- Which of the following statements concerning lanthanide elements is false?
- Four successive members of the first series of the transition metals are listed below. For which one of them…
- Larger number of oxidation states are exhibited by the actinoids than those by the lanthanoids, the main…
- Among the following, which is the strongest oxidizing agent? (JEE Main 2022)
- In chromite ore, the oxidation number of iron, and chromium are respectively?
- Strong reducing and oxidizing agents among the following, respectively, are (Jee Main 2023)
More d- and f-Block Elements questions · Browse all practice questions