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Why before electroplating ,a brass spoon is first cleaned and then is washed in the hot solution of caustic soda followed by dilute hydrochloric acid and water after which it is thoroughly wash with detergent and several times with distilled water? |
| Answer» Why before electroplating ,a brass spoon is first cleaned and then is washed in the hot solution of caustic soda followed by dilute hydrochloric acid and water after which it is thoroughly wash with detergent and several times with distilled water? | |