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The weight of iron which will be convert...

The weight of iron which will be converted into its oxide `(Fe_(3)O_(4))` by the action of 18 g of steam on it will be: (Atomic mass of Fe=56)

A

168g

B

84g

C

42g

D

21g

Text Solution

Verified by Experts

The correct Answer is:
C
`3Fe+4H_(2)OrarrFe_(2)O_(4)+4H_(2)`
`3xx"56 gm "-" "4xx18gm`
`?" "-" 18 gm"`
`=(18xx3xx56)/(4xx18)="32 gms"`
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