AP EAMCET 22 May 2023 Shift 1 Paper

Question : 150 of 160

Marks: +1, -0

Which of the following is/are correct?
i. CrO3 is an acidic oxide
ii. Mo(VI) and W(VI) are found to be more stable than Cr(VI)
iii. All‌Cu (II) halides are known except iodide
iv. The E⊖ value for Cr3+∕Cr2+ is much more positive than Mn3+∕Mn2+