A group of acidic oxide is. | CHEMISTRY - SOME IMPORTANT COMPOUNDS OF TRANSITION ELEMENTS | SolveeIt

Question

A group of acidic oxide is.

$CrO_{3},Mn_{2}O_{7}$

$ZnO,Al_{2}O_{3}$

$CaO,ZnO$

$Na_{2}O,Al_{2}O_{3}$

Answer

$CrO_{3},Mn_{2}O_{7}$

Explanation

Solution

$CrO_{3}\text{and}Mn_{2}O_{7}$ are acidic oxide since they react with water to form acid.

$CrO_{3} + H_{2}O \rightarrow \underset{\begin{aligned} & \text{Chromic} \\ & \text{acid} \end{aligned}}{H_{2}CrO_{4}}$ ; $Mn_{2}O_{7} + H_{2}O \rightarrow \underset{\begin{aligned} & \text{Permagnic} \\ & \text{acid} \end{aligned}}{2HMnO_{4}}$

Question: A group of acidic oxide is....

Solution