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Question

Which of the following does not contain $O - O$ bond?
$S_{2} O_{7}^{2 -}$
$S_{2} O_{8}^{2 -}$
$S_{4} O_{6}^{2 -}$
$S O_{5}^{2 -}$

A

S_{2} O_{7}^{2 -}

B

S_{4} O_{6}^{2 -}

C

S O_{5}^{2 -}

D

S_{2} O_{8}^{2 -}

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Solution

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$S_{2} O_{8}^{2 -}$ and $S O_{5}^{2 -}$ contain O-O bond.

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Similar Questions

Q1

Balance the following reaction.

I_{2} + S_{2} O_{3}^{2 -} \to I^{-} + S_{4} O_{6}^{2 -}

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Q2

Three different solutions of oxidising agents, i.e.

K_{2} C r_{2} O_{7}, I_{2}

and

K M n O_{4}

is titrated separately with

0.19

g of

K_{2} S_{2} O_{3}

. The molarity of each oxidising agent is

0.1 M

and the reactions are as follows:
i.

C r_{2} O_{7}^{2 -} + S_{2} O_{3}^{2 -} \to C r^{3 +} + S O_{4}^{2 -}

ii.

I_{2} + S_{2} O_{3}^{2 -} \to I^{⊝} + S_{4} O_{6}^{2 -}

iii.

M n O_{4}^{⊝} + S_{2} O_{3}^{2 -} \to M n O_{2} + S O_{4}^{2 -}

(Molecular weight of

K_{2} S_{2} O_{3} = 190, K_{2} C r_{2} O_{7} = 294, K M n O_{4} = 158,

and

I_{2} = 254 g

m o l^{- 1}

Which of the following statements is/are correct?

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Q3

In the reaction:

M n^{2 +} + S_{2} O_{8}^{2 -} \to S O_{4}^{2 -} + M n O_{4}^{-}

(acid medium), the number of moles of

S_{2} O_{8}^{2 -}

required to oxidize

2

moles of

M n^{2 +}

is :

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Q4

The oxidation of iodide ion by perdisulphate ion is described as follows :

I^{⊝} + S_{2} O_{8}^{2 -} \to I_{3}^{⊝} + S O_{4}^{2 -}

If the rate disappearance of

S_{2} O_{8}^{2 -}

ions is

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S O_{4}^{2 -}

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Q5

Which of the following does not contain

O - O

bond?

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