Environmental Chemistry

\(\mathrm{X}={\mathrm{ClONO}}_{2},\mathrm{Y}=\mathrm{HOCl},\mathrm{Z}={\mathrm{NO}}_{2}\)

\(\mathrm{X}={\mathrm{ClNO}}_{2},\mathrm{Y}=\mathrm{HCl},\mathrm{Z}={\mathrm{HNO}}_{3}\)

\(\mathrm{X}={\mathrm{ClNO}}_{3},\mathrm{Y}={\mathrm{Cl}}_{2},\mathrm{Z}={\mathrm{NO}}_{2}\)

\(\mathrm{NO}\)

\({\mathrm{NO}}_{3}^{-}\)

\({\mathrm{NO}}_{2}^{-}\)

Burning of Coal

Deforestation

Burning of petroleum

\(\left[3\left({\mathrm{Ca}}_{2}{\left({\mathrm{PO}}_{4}\right)}_{2}\right)\cdot \mathrm{Ca}(\mathrm{OH}{)}_{2}\right]\)

\(\left[3\left({\mathrm{Ca}}_{3}{\left({\mathrm{PO}}_{4}\right)}_{2}\right)\cdot \mathrm{Ca}(\mathrm{OH}{)}_{2}\right]\)

\(\left[3\left({\mathrm{Ca}}_{3}{\left({\mathrm{PO}}_{4}\right)}_{3}\right)\cdot {\mathrm{CaF}}_{2}\right]\)

\(\left[3\left({\mathrm{Ca}}_{2}{\left({\mathrm{PO}}_{4}\right)}_{2}\right)\cdot \mathrm{Ca}(\mathrm{OH}{)}_{2}\right]\)

\(\left[3\left({\mathrm{Ca}}_{3}{\left({\mathrm{PO}}_{4}\right)}_{2}\right)\cdot {\mathrm{CaF}}_{2}\right]\)

\(\left[3\left({\mathrm{Ca}}_{3}{\left({\mathrm{PO}}_{4}\right)}_{2}\right)\cdot \mathrm{Ca}(\mathrm{OH}{)}_{2}\right]\)

\(\left[3\left({\mathrm{Ca}}_{3}{\left({\mathrm{PO}}_{4}\right)}_{3}\right)\cdot {\mathrm{CaF}}_{2}\right]\)

(B) and (C) only

(C) and (D) only

(A) and (D) only

(A) and (B) only

\(\mathrm{NO}\)

\({\mathrm{NO}}_{3}^{-}\)

\({\mathrm{NO}}_{2}\)

\({\mathrm{NO}}_{2}^{-}\)

\({\mathrm{CO}}_{2}+{\mathrm{H}}_{2}\mathrm{O}\to {\mathrm{H}}_{2}{\mathrm{CO}}_{3}\)

\(4{\mathrm{NO}}_{2}+{\mathrm{O}}_{2}+2{\mathrm{H}}_{2}\mathrm{O}\to 4{\mathrm{HNO}}_{3}\)

\(2{\mathrm{SO}}_{2}+{\mathrm{O}}_{2}+2{\mathrm{H}}_{2}\mathrm{O}\to 2{\mathrm{H}}_{2}{\mathrm{SO}}_{4}\)

\({\mathrm{N}}_{2}{\mathrm{O}}_{5}+{\mathrm{H}}_{2}\mathrm{O}\to 2{\mathrm{HNO}}_{3}\)

NO

\(S{O}_{2}\)

\(N{O}_{2}\)

HCHO

By using tall chimneys

By complete combustion of fuel

By using catalytic converters in the automobiles/industry

By using catalyst

Eutrophication indicates that water body is polluted

Eutrophication leads to increase in the oxygen level in water

Eutrophication leads to anaerobic conditions

The dissolved oxygen concentration below \(6 \mathrm{~ppm}\) inhibits fish growth

Polluted water has BOD value higher than 10 ppm

Aerobic bacteria decreases the BOD value

Anaerobic bacteria increases the BOD value

Clean water has BOD value higher than 10 ppm

An average human being consumes more food than air

An average human being consumes nearly 15 times more air than food

An average human being consumes equal amount of food and air

An average human being consumes 100 times more air than food

(A) and (B) only

(A), (C) and (D) only

(A) only

(A) and (C) only

for the photochemical breakdown of waste present in \(1 \mathrm{~m}^3\) volume of a water body.

for sustaining life in a water body

by bacteria to break-down organic waste in a certain volume of a water sample

by anaerobic bacteria to breakdown inorganic waste present in a water body

Acid rain

Oxidising smog

Reducing smog

Global warming

Both Statement-I and Statement-II are correct.

Both Statement-I and Statement-II are incorrect.

Statement-I is correct but Statement-II is incorrect.

Statement-I is incorrect but Statement-II is correct.

Statement-I is incorrect but Statement-II is correct

Both Statement-I and II are correct

Both Statement-I and II are incorrect

Statement-I is correct but Statement II is incorrect

X = Ammonium salts, \(\mathrm{Y}={\mathrm{SO}}_{2}\)

\(\mathrm{X}={\mathrm{SO}}_{2},\mathrm{Y}=\) Ammonium salts

X = Ammonium salts, \(\mathrm{Y}={\mathrm{CO}}_{2}\)

\(\mathrm{X}={\mathrm{CO}}_{2},\mathrm{Y}={\mathrm{SO}}_{2}\)

Both Statement-I and Statement-II are correct.

Both Statement-I and Statement-II are incorrect.

Statement-I is correct but Statement-II is incorrect.

Statement-I is incorrect but Statement-II is correct.

Statement-I is correct but statement-II is incorrect.

Both Statement-I and Statement-II are incorrect.

Statement-I is incorrect but Statement-II is correct.

Both Statement-I and Statement-II are correct.

Both the Statements-I and II are incorrect

Statement-I is incorrect but Statement-II is correct

Both the Statement-I and II are correct

Statement-I is correct but Statement-II is incorrect

(A) is false but (R) is true.

Both (A) and (R) are true but (R) is the true explanation of (A).

(A) is true but (R) is false.

Both (A) and (R) are true and (R) is not the true explanation of (A).

(A), (B), (C) only

(A) and (B) only

(A), (B), (D) only

(B), (C), (D) only

The places with healthy vegetation

Himalayan villages in winter

Marshy lands

Industrial areas

\({\mathrm{ClO}}^{-}(\mathrm{g})+\overset{˙}{\mathrm{O}}(\mathrm{g})⟶{\mathrm{Cl}}^{-}(\mathrm{g})+{\mathrm{O}}_{2}(\mathrm{g})\)

\(\overset{˙}{{\mathrm{Cl}}^{-}}(\mathrm{g})+{\mathrm{O}}_{3}(\mathrm{g})⟶\mathrm{Cl}{\overset{˙}{\mathrm{O}}}^{-}(\mathrm{g})+{\mathrm{O}}_{2}(\mathrm{g})\)

\(2{\mathrm{ClO}}^{-}⟶{\mathrm{ClO}}_{2}(\mathrm{g})+\overset{˙}{{\mathrm{Cl}}^{-}}(\mathrm{g})\)

\({\mathrm{CF}}_{2}{\mathrm{Cl}}_{2}(\mathrm{g})\overset{\text{ uv }}{\to }\overset{˙}{{\mathrm{Cl}}^{-}}(\mathrm{g})+{\overset{˙}{\mathrm{C}}}^{-}{\mathrm{F}}_{2}\mathrm{Cl}(\mathrm{g})\)

\({\mathrm{NO}}_{2}\) is present in classical smog

Both \({\mathrm{NO}}_{2}\) and \({\mathrm{SO}}_{2}\) are present in classical smog

Photochemical smog has high concentration of oxidizing agents

Classical smog also has high concentration of oxidizing agents

\({\mathrm{CH}}_{3}\)

\(\mathrm{NO}^\circ\)

\(\mathrm{Cl}^\circ\)

\(\overset{˙}{\mathrm{O}H}\)

\(\mathrm{O},\mathrm{NO}\&{\mathrm{NO}}_{3}^{-}\)

\(\mathrm{O},{\mathrm{N}}_{2}\mathrm{O}\&\mathrm{NO}\)

\(\mathrm{N},{\mathrm{O}}_{2}\&{\mathrm{O}}_{3}\)

\(\mathrm{NO},\mathrm{O}\&{\mathrm{O}}_{3}\)

cosmic rays

\( \gamma \)-rays

ultraviolet radiation

visible radiations

Statement I is correct but statement II is incorrect.

Both statement I and statement II are incorrect.

Statement I is incorrect but statement II is correct.

Both statement I and statement II are correct.

A and B

A and D

B and C

B and D

\({\mathrm{ClO}}^{-}(\mathrm{g})+\overset{˙}{\mathrm{O}}(\mathrm{g})⟶{\mathrm{Cl}}^{-}(\mathrm{g})+{\mathrm{O}}_{2}(\mathrm{g})\)

\(\overset{˙}{{\mathrm{Cl}}^{-}}(\mathrm{g})+{\mathrm{O}}_{3}(\mathrm{g})⟶\mathrm{Cl}{\overset{˙}{\mathrm{O}}}^{-}(\mathrm{g})+{\mathrm{O}}_{2}(\mathrm{g})\)

\(2{\mathrm{ClO}}^{-}⟶{\mathrm{ClO}}_{2}(\mathrm{g})+\overset{˙}{{\mathrm{Cl}}^{-}}(\mathrm{g})\)

\({\mathrm{CF}}_{2}{\mathrm{Cl}}_{2}(\mathrm{g})\overset{\text{ uv }}{\to }\overset{˙}{{\mathrm{Cl}}^{-}}(\mathrm{g})+{\overset{˙}{\mathrm{C}}}^{-}{\mathrm{F}}_{2}\mathrm{Cl}(\mathrm{g})\)

Both Statement-I and Statement-II are incorrect

Statement-I is incorrect but Statement-II is correct

Statement-I is correct but Statement-II is incorrect

Both Statement-I and Statement-II are correct

\({\mathrm{CO}}_{2}+{\mathrm{H}}_{2}\mathrm{O}\to {\mathrm{H}}_{2}{\mathrm{CO}}_{3}\)

\(4{\mathrm{NO}}_{2}+{\mathrm{O}}_{2}+2{\mathrm{H}}_{2}\mathrm{O}\to 4{\mathrm{HNO}}_{3}\)

\(2{\mathrm{SO}}_{2}+{\mathrm{O}}_{2}+2{\mathrm{H}}_{2}\mathrm{O}\to 2{\mathrm{H}}_{2}{\mathrm{SO}}_{4}\)

\({\mathrm{N}}_{2}{\mathrm{O}}_{5}+{\mathrm{H}}_{2}\mathrm{O}\to 2{\mathrm{HNO}}_{3}\)

Manufacturing of cement

Steel manufacturing

Electricity generation in thermal power plants.

Industrial production of urea

Chlorine for bleaching of paper

Large amount of water alone for washing clothes

Liquified CO2 for dry cleaning of clothes

Tetrachloroethene for laundry

Chlorine for bleaching of paper

Large amount of water alone for washing clothes

Liquified \(C{O}_{2}\) for dry cleaning of clothes

Tetrachloroethene for laundry

(A)-(III), (B)-(IV), (C)-(I), (D)-(II)

(A)-(I), (B)-(II), (C)-(III), (D)-(IV)

(A)-(III), (B)-(IV), (C)-(II), (D)-(I)

(A)-(IV), (B)-(I), (C)-(III), (D)-(II)

Chlorine for bleaching of paper

Large amount of water alone for washing clothes

Liquified CO₂ for dry cleaning of clothes

Tetrachloroethene for laundry

Protects us from the UV radiation

Protects us from the X ray radiation

generates photochemical smog

protects us from greenhouse effect

\({\mathrm{CO}}_{2}\)

\(\mathrm{CFCs}\)

\(\mathrm{CO}\)

\({\mathrm{NO}}_{2}\)

Smoke, fog and \(C{H}_{2}=CH-CHO\)

Smoke, fog and \({O}_{3}\)

Smoke, fog and \(S{O}_{2}\)

Smoke, fog and \({N}_{2}{O}_{3}\)