Which of the following compound is not possible :NaOBa2OMnO4All

To determine which compound is not possible, we need to analyze the elements and their respective charges in each compound.

1. NaOBa2OMnO4:

• Na (sodium) has a charge of +1.
• O (oxygen) has a charge of -2.
• Ba (barium) has a charge of +2.
• Mn (manganese) has a charge of +7.

In this compound, the charges must balance out. Let's calculate the total charge on each side:

On the left side: Na has a charge of +1, and O has a charge of -2. So, the total charge is +1 - 2 = -1.

On the right side: Ba has a charge of +2, and Mn has a charge of +7. So, the total charge is +2 + 7 = +9.

Since the charges on the left and right sides do not balance out, this compound is not possible.

Therefore, the compound NaOBa2OMnO4 is not possible.