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2.1g of Fe combines with S evolving 3.7...

`2.1g` of `Fe ` combines with `S` evolving `3.77kJ` . The heat of formation of `FeS` in `kJ//mol` is

A

`-1.79`

B

`-100.5`

C

`-3.77`

D

`-37.7`

Text Solution

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The correct Answer is:
B
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