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Pick up the correct statement from the following: | |
A. | The percentage of absorption for firebricks varies from 5 to 10 [Wrong Answer] |
B. | The percentage of silica in silica bricks is to the extent of about 95 to 97 percent [Wrong Answer] |
C. | Roughly 1 to 2 percent of lime in silica bricks is added to act as binding material [Wrong Answer] |
D. | All the above. [Correct Answer] |