MCQOPTIONS
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				| 1. | 
                                    The most commonly used accelerator in gypsum product is___________________? | 
                            
| A. | Sodium fluoride | 
| B. | Potassium fluoride | 
| C. | Potassium sulfate | 
| D. | Aluminium sulfate | 
| Answer» D. Aluminium sulfate | |