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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3bn209

Peroxo links have O = $- 1$ . Select ALL correct statements.

A $H X_{2} SO X_{5}$ has one peroxo link and S = $+ 6$
B $CrO X_{5}$ has two peroxo links and Cr = $+ 6$
C $H X_{2} S X_{2} O X_{8}$ has one peroxo link and S = $+ 6$
D $H X_{2} S X_{2} O X_{7}$ has one peroxo link and S = $+ 6$

Answer: A, B, C

H X_{2} SO X_{5}

: 3 O at

- 2

, 2 O at

- 1

:

2 + x - 8 = 0

, S = +6.

CrO X_{5}

(one O at

- 2

, four O at

- 1

): Cr = +6.

H X_{2} S X_{2} O X_{8}

(six O at

- 2

, two at

- 1

):

2 + 2 x - 14 = 0

, S = +6.

H X_{2} S X_{2} O X_{7}

is disulfuric acid with an S-O-S bridge and no O-O link.

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