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Answer the following questions :

(d) When iron is mixed with sulphur at room temperature, it does not form a compound. Why?

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Solution

When iron is mixed with sulphur at room temperature, it does not form a compound because it requires heat to form a compound i.e., iron sulphide.

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P_{B}^{0} = 120 m m H g

.
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(i)

X e F_{4}

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P_{B}^{0} = 120 m m H g

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