The image below shows iron being put into moulds to make iron rods.Which of the following process helps in obtaining liquid iron from iron rods?
A
Melting
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B
Cooling
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C
Boiling
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D
Freezing
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Solution
The correct option is A Melting Solids can be changed into liquids by heating them. The process of converting any substance solid state into a liquid state with the application of heat is called melting. Iron rods can be made by melting solid iron and pouring them into moulds.