Boilers are made up of

1.	Boilers are made up of
Answer» CopperCopper does not react with cold water, hot water or steam however iron reacts with steam. If water tanks are made of steel which is an iron alloy than iron would react with steam formed from hot water.3Fe+4H2\u200bO→Fe3\u200bO4\u200b+4H2\u200b

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