MCQOPTIONS
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				| 1. | 
                                    The rusting of iron nail [CDS] | 
                            
| A. | decreases its weight | 
| B. | increases its weight | 
| C. | does not affect weight but iron is oxidised | 
| D. | does not affect weight but iron is reduced | 
| Answer» C. does not affect weight but iron is oxidised | |