The oxide that will form a mixed hydride is?

A.Co2
B.SO2
C.NO2
D.SO3?

To determine the oxide that will form a mixed hydride, we need to understand what a mixed hydride is. A mixed hydride refers to a compound that contains both hydrogen (H) and another element, typically a non-metal.

To determine the oxide that will form a mixed hydride, we need to find the compounds that have both hydrogen (H) and oxygen (O). Let's analyze the options provided:

A. Co2 (cobalt(II) oxide): This compound consists of cobalt and oxygen atoms, but it does not contain hydrogen. Therefore, it is not a mixed hydride.

B. SO2 (sulfur dioxide): This compound consists of sulfur and oxygen atoms, but it does not contain hydrogen. Therefore, it is not a mixed hydride.

C. NO2 (nitrogen dioxide): This compound consists of nitrogen and oxygen atoms, but it does not contain hydrogen. Therefore, it is not a mixed hydride.

D. SO3 (sulfur trioxide): This compound consists of sulfur and oxygen atoms, but it does not contain hydrogen. Therefore, it is not a mixed hydride.

Out of the options provided, none of them form a mixed hydride.