Which of the following has been arranged in order of decreasing bond dissociation energy:

1. P-O>Cl-O>S-O

2. P-O>S-O>Cl-O

3. S-O>Cl-O>P-O

4. Cl-O>S-O>P-O

Compound among the following with an S-S bond is :

1. H₂S₂O₇

2. H₂SO₅

3. H₂S₂O₈

4. H₂S₂O₆

The bleaching action of SO₂ is due to its

1. Acidic property

2. Basic property

3. Reducing property

4. Oxidising property

The correct order of boiling points for group 16 hydrides is:

1. H₂O < H₂S < H₂Se < H₂Te

2. H₂Te < H₂Se < H₂S < H₂O

3. H₂S < H₂Se < H₂Te < H₂O

4. H₂O < H₂Te < H₂Se < H₂S

In which pair of ions both the species contain S-S bond?

$\left(\mathrm{a}\right)<mspace\; width="1em"></mspace>{\mathrm{S}}_2{\mathrm{O}}_7^{2-},<mspace\; width="1em"></mspace>{\mathrm{S}}_2{\mathrm{O}}_3^{2-}$
$\left(\mathrm{b}\right)<mspace\; width="1em"></mspace>{\mathrm{S}}_4{\mathrm{O}}_6^{2-},<mspace\; width="1em"></mspace>{\mathrm{S}}_2{\mathrm{O}}_3^{2-}$
$\left(\mathrm{c}\right)<mspace\; width="1em"></mspace>{\mathrm{S}}_2{\mathrm{O}}_7^{2-},<mspace\; width="1em"></mspace>{\mathrm{S}}_2{\mathrm{O}}_8^{2-}$
$\left(\mathrm{d}\right)<mspace\; width="1em"></mspace>{\mathrm{S}}_4{\mathrm{O}}_6^{2-},<mspace\; width="1em"></mspace>{\mathrm{S}}_2{\mathrm{O}}_7^{2-}$