 
			 
			MCQOPTIONS
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				| 1. | In case along with silica, there is high content in sulphide and chloride what should be used? | 
| A. | wba | 
| B. | wba and sba | 
| C. | sba | 
| D. | sba,wba and wac | 
| Answer» C. sba | |