MCQOPTIONS
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				| 1. | 
                                    In reversible hydrocolloid the property by which the transformation from sol to gel and gel to sol is a function of the_____________? | 
                            
| A. | Concentration of filler and plasticizer | 
| B. | Percentage composition by weight of water | 
| C. | Concentration of potassium sulphate | 
| D. | Temperature | 
| Answer» E. | |