MCQOPTIONS
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MCQOPTIONS
| 1. |
The temperature at which the softening of water takes place by lime soda process is ____________ |
| A. | 10<sup>o</sup>-21<sup>o</sup>C |
| B. | 20<sup>o</sup>-30<sup>o</sup>C |
| C. | 39<sup>o</sup>-45<sup>o</sup>C |
| D. | 90<sup>o</sup>C |
| Answer» B. 20<sup>o</sup>-30<sup>o</sup>C | |