Some Basic Concepts of Chemistry - Result Question 17

17. The oxidation number of sulphur in $S _8, S _2 F _2, H _2 S$ respectively, are

(1999)

(a) $0,+1$ and -2

(b) $+2,+1$ and -2

(c) $0,+1$ and +2

(d) $-2,+1$ and -2

Show Answer

Answer:

Correct Answer: 17. (a)

Solution:

In $S_s$, oxidation number number of S is 0, elemental state.

In $S_2F_2$, F is in -1 oxidatoin state, hence S is in +1 oxidation state.

In $H_2S$, H is in +1 oxidation state, hence S is in -2 oxidation state.

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