<prompt> Function of hypo used in fixer is:Inactivates the carryover developing agentDissolves and removes the unexposed silver halidePrevents damage to gelatinAll of the above  <response>: An aqueous solution of ammonium thiosulfate hypo dissolves the unexposed silver halide grains. It forms stable, water-soluble complexes with silver ions, which diffuse from the emulsion. Excessive fixation hours results in a gradual loss of film density because the grains of silver slowly dissolve in the acetic acid of the fixing solution.White and Pharoahs Oral Radiology Principles and Interpretation 8th edition 