7
Question
Complete the table:
Method of preparation & Content Pig Iron ...........i................ Cast Iron ...........ii............... Wrought Iron .........iii............... Steel ............iv...........
| Method of preparation & Content | |
| Pig Iron | ...........i................ |
| Cast Iron | ...........ii............... |
| Wrought Iron | .........iii............... |
| Steel | ............iv........... |
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Solution
i. Obtained from Blast Furnace contains 4 % Carbon and other impurities like manganese silicon , phosphorous , etc.
ii. Pig iron mixed with scrap iron and coke melted in a special furnace contains 3 % carbon.
iii. Made by purifying cast iron.
iv. Prepared by varying the amount of carbon from 0.1 to 1.5 %.
ii. Pig iron mixed with scrap iron and coke melted in a special furnace contains 3 % carbon.
iii. Made by purifying cast iron.
iv. Prepared by varying the amount of carbon from 0.1 to 1.5 %.
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