MCQ
Bleaching action of $S{O_2}$ is due to its
- AOxidising property and nitrogen
- BAcidic property
- CBasic property
- ✓Reducing property
✓
Answer
Correct option: D.
Reducing property
d
(d) $S{O_2}$ act as bleaching agent due to its reducing property.
(d) $S{O_2}$ act as bleaching agent due to its reducing property.
$S{O_2} + 2{H_2}O \to {H_2}S{O_4} + 2H$
Coloured matter + $H$ $ \to $ Colourless matter
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
$RCOOH\xrightarrow{{}}RC{H_2}OH$ This mode of reduction of an acid to alcohol can be affected only by
→An ideal gas is allowed to expand both reversibly and irreversibly in an isolated system. If $T_i$ is the initial temperature and $T_f$ is the final temperature, which of the following statements is correct ?
→That ion or molecule which forms a complex compound with transitional metal ion is called
Standard enthalpy of vaporisation $\Delta _{vap} H^o$ for water at $100\,^oC$ is $40.66\ kJ\ mol^{-1}.$ The internal energy of vaporisation of water at $100\,^oC$ (in $kJ\ mol^{-1}$) is ............... $\mathrm{kJ}^{-1} \, \mathrm{mol}^{-1}$
→(Assume water vapour to behave like an ideal gas)
Compound $(A), \,C_8H_9Br,$ gives a white precipitate when warmed with alcoholic $AgNO_3.$ Oxidation of $(A)$ gives an acid $(B),\, C_8H_6O_4.$ $(B)$ easily forms anhydride on heating. Identify the compound $(A).$
→Number of $\sigma$ bonds in
→If $P$ to $T$ are second period $p-$ block elements then which of the following graph show correct relation between valence electrons in $P_2$ to $T_2$ (corresponding molecules) and their bond order is
→Paper chromatography is an example of
Product $(A)$ of the reaction is
→Assertion : $C -O$ bond in metal carbonyls is long.
→Reason : There is delocalisation of electrons from filled $d$ orbitals into the empty orbitals on the $CO$ ligands.