Yellow coloured aqueous solution of sodium chromate changes to orange when acidified with…
Chemistry · Class 12 · CBSE — The d- and f-Block Elements
Yellow coloured aqueous solution of sodium chromate changes to orange when acidified with sulphuric acid because
- H+ ions convert chromate ions to dichromate ions
- H+ ions react with sodium chromate to give sodium ions which turn solution orange
- Cr3+ ions are liberated in the solution which turn the solution orange
- sodium hydroxide is formed during the reaction which imparts orange colour to the solution.
Answer
(A) H + ions convert chromate ions to dichromate ions
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The equation 3MnO 4 2 – + 4H + → 2MnO 4 – + MnO 2 + 2H 2 O represents
- Acidified potassium dichromate reacts with potassium iodide and oxidises it to I 2 . What is the oxidation…
- Which of the following pairs of ions have the same electronic configuration?
- Fe 3 O 4 (magnetite) is an example of
- There are 14 elements in actinoid series. Which of the following elements does not belong to this series?
- Reactivity of transition elements decreases almost regularly from Sc to Cu because of
- In the dichromate anion (Cr 2 O 7 2– )
- Which one of the following is a ‘ d -block element’?
More The d- and f-Block Elements questions · Browse all practice questions