 
			 
			MCQOPTIONS
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				| 1. | In general, metals: | 
| A. | Expand on heating | 
| B. | Contract on heating | 
| C. | Before heating, the iron filings and sulphur powder could not be seen separately. | 
| D. | All the above | 
| E. | None of these | 
| Answer» B. Contract on heating | |