Comedk
D And F Block Elements
COMEDK 2025 Evening Shift
MCQ+1 / -02025
Find the correct matches.
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}
.tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top}
.tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top}
| A. | $\mathrm{Cr}_2 \mathrm{O}_7^{2-}$ | P. | is predominantly a basic compound. |
|---|---|---|---|
| B. | $\mathrm{FeCr}_2 \mathrm{O}_4$ | Q. | is predominantly a acidic compound |
| C. | $\mathrm{CrO}_3$ | R. | forms yellow chromate on reaction with $\mathrm{Na}_2 \mathrm{CO}_3$ in air. |
| D. | $\mathrm{CrO}$ | S. | is interconvertible with $\mathrm{MO}_4^{2-}$ depending on the pH of the medium. |