I think you mean ionic bond and not conic bond. The pair of elements that form an ionic bond are barium and chlorine.
We first assume that this gas is an ideal gas where it follows the ideal gas equation. The said equation is expressed as: PV = nRT. From this equation, we can predict the changes in the pressure, volume and temperature. If the volume and the temperature of this gas is doubled, then the pressure still stays the same.
There are no options provided, therefor I cannot answer the question.
