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Match the following columns :
Column-I (Oxyacid) Column-II (Incorrect characteriatics)
a) Pyrosulphurous acid p) $S - S$ linkage is absent
b) Pyrosulphuric acid q) $S - O - S$ linkage is present
c) Tetrathionic acid r) Sulphur atoms have different oxidation state
d) Thiosulphuric acid s) Basicity is 2
t) Molecule is planar

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$(a - p, r, t); (b - s, t); (c - p, q,); (d - q, t)$

$(a - p, q, t); (b - r, t); (c - p, q, t); (d - p, q, t)$

$(a - p, q, r); (b - q, r, s); (c - q, s, t); (d - q, t)$

$(a - q, t); (b - p, q, r, t); (c - p, r, t); (d - p, r, s, t)$

answer is B.

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Detailed Solution

The structure can give the better idea about the linkages of the molecule,
Pyrosulphurous acid $(H_{2} S_{2} O_{8})$ :

Pyrosulphuric acid $(H_{2} S_{2} O_{7})$ :

Thiosulphuric acid $(H_{2} S_{2} O_{3})$ :

Thus the option B is correct.

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