Oxides of Sulphur

Q. Thermal power plants can lead to :

(JEE MAIN - 2020)

1. Blue baby syndrome
2. Ozone layer depletion
3. Acid rain
4. Eutrophication

Q. $1000\text{L}$ of air at STP was dissolved in water and it required $2.5\times {10}^{-5}$ moles of $KMn{O}_4$ for complete reaction with the pollutant $S{O}_2$. Thus, the $S{O}_2$ content in air is:

1. 1.4 ppm
2. 14 ppm
3. 2.8 ppm
4. 6.25 ppm

Q. $S{O}_2$, as a pollutant can be controlled by:
(I) Using solar energy, nuclear energy, hydroelectric energy.
(II) Using low-sulphur fuels, natural gas.
(III) The desulphurisation of high-sulphur coal and oil before burning by FGD (Fuel-gas desulphurisation).
(IV) Using water under high pressure.
The correct methods are:

1. Both I and II
2. Both I and III
3. I, II and IV
4. I, II and III

Q. $K_{2}C{r}_2{O}_7+S{O}_2\stackrel{H^{+}}{\to }$ Products.
In this reaction, the final oxidation states of sulphur and chromium are:

1. +3, +6
2. +6, +3
3. +6, +6
4. +4, +3

Q.

How is $S{O}_2$ an air pollutant?

Q. Sulphur reacts with chlorine in $1:2$ ratio and forms (X). (X) on hydrolysis gives a sulphur compound (Y). What is the hybridisation of the central atom in the anion of (Y)?

1. $s{p}^3$
2. $s{p}^{3}d$
3. $sp$
4. $s{p}^2$

Q. How many of the following doesn't have $S-S$ bonds?
$S_2{O}_4^{2-},S_2{O}_6^{2-},S_2{O}_5^{2-},S_2{O}_3^{2-},S_2{O}_7^{2-}$

1. 1
2. 4
3. 3
4. 2

Q. The correct statements among the following are:
I. $Sn{O}_2$ has an amphoteric character.
II. $O_3$ is a linear molecule.
III. Sulphur has oxidation states of +5 and +3 in disulphurous acid.

1. I, II and III
2. I & III only
3. III only
4. II & III only.

Q. Which of the following oxyanions contain S-S (single bond)?

1. $S_2{O}_7^{2-}$
2. $S_2{O}_6^{2-}$
3. $S_2{O}_5^{2-}$
4. $S_2{O}_4^{2-}$

Q. In which pair of ions, both the species contain a S-S bond?

1. $S_4{O}_6^{2-},S_2{O}_3^{2-}$
2. $S_2{O}_7^{2-},S_2{O}_8^{2-}$
3. $S_4{O}_6^{2-},S_2{O}_7^{2-}$
4. $S_2{O}_7^{2-},S_2{O}_3^{2-}$