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Ozone Layer Depletion

Which of the ...

Question

Which of the following is a photochemical reaction product?

A

Flourides

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B

CO and

C O_{2}

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C

S O_{3}

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D

O_{3}

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Solution

The correct option is D $O_{3}$
The ozone molecule is formed due to the action of the UV rays with the oxygen molecules. When the UV rays penetrate in the Earth's atmosphere, the radiations react with the O $_{2}$ molecule to form oxygen atoms which react again to form O $_{3}$ . This reaction is known as photochemical reaction in which light and radiations form ozone.
Thus, the correct answer is option D.

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Q. Match the following:

	List - I		List - II
A.	Green house gas	1.	$C O$
B.	Silent killer gas	2.	$C O_{2}$
C.	Photochemical smog	3.	$C F C s$
D.	Acid rain	4.	$O_{3}, N O_{2}$
		5.	$N_{2} O_{5}, S O_{3}$

Q. Which of the following reaction is an example of a photochemical reaction?

Q. Match the item of Column I with the item of the Column II

Column I	Column II
a) $N H_{4} O H + C H_{3} C O O H ⟶ C H_{3} C O O N H_{4} + H_{2} O$	(i) Thermal decomposition
b) $2 A g B r ⟶ 2 A g + {B r}_{2}$	(ii) Thermit reaction
c) $Z n C O_{3} ⟶ Z n O + C O_{2}$	(iii) Photochemical reaction
d) $2 A l + {F e}_{2} O_{3} ⟶ 2 F e + {A l}_{2} O_{3}$	(iv) Neutralization reaction

Q. Photochemical reactions have the following characteristics:

Q. Which of the following reactant is oxidised in the following (unbalanced) reaction?

C_{6} H_{5} O H + O_{3} ⟶ {C O}_{2} + H_{2} O + O_{2}

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