<prompt> Dementia in patient of chronic renal failure with chronic hemodialysis is due to -Aluminium toxicityUremiaA Beta, amyloidA beta amyloid deposition  <response>: Answer- A. Aluminium toxicityPatients undergoing long-term dialysis acquire dialysis encephalopathy or dialysis dementia, which is a subacute, progressive,and often fatal disease.Aluminium toxicity either from aluminium phosphate salts or from aluminium in the dialysate were linked to the pathogenesis of dialysis dementia. 