MCQOPTIONS
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MCQOPTIONS
| 1. |
For machining of Cu material which of the following can be used as electrolytes? |
| A. | H<sub>2</sub>PO<sub>4</sub> |
| B. | H<sub>2</sub>PO<sub>4</sub> and Na<sub>2</sub>CrO<sub>4</sub> |
| C. | HCLO<sub>4</sub> |
| D. | HNO<sub>3</sub> |
| Answer» B. H<sub>2</sub>PO<sub>4</sub> and Na<sub>2</sub>CrO<sub>4</sub> | |