All property acquired or held by the corporation under the Conservation Corporation Act is declared to be public property. The property to the extent used for a public purpose, all the income therefrom, bonds issued under the act, interest payable thereon, and income derived therefrom, shall at all times be exempt from all taxes imposed by this state or any county, any city, or any other political subdivision of this state. The corporation may, in the resolution authorizing the issuance of any series of bonds, elect to have the income on such bonds be subject to personal income taxation imposed by this state. If the corporation is dissolved after all indebtedness and other obligations of the corporation are discharged, its remaining assets shall inure to the benefit of the State of Nebraska.