The ozone layer exists up to 20 km above the | vedclass

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Question

(A) The ozone layer in the stratosphere acts as a shield by absorbing harmful ultraviolet $(UV)$ radiation from the sun,which is beneficial for life o

Vedclass · Accepted Answer

It blocks ultraviolet radiation,so it is beneficial for us.

Vedclass · Answer

(A) The ozone layer in the stratosphere acts as a shield by absorbing harmful ultraviolet $(UV)$ radiation from the sun,which is beneficial for life on Earth. $O_3$ is a bent (angular) molecule,not linear. The conversion of $O_3$ to $O_2$ is an exothermic process,not endothermic. Therefore,the correct statement is that it blocks ultraviolet radiation and is beneficial.

List-$I$	List-$II$
$A$. Insecticide	$I$. $COD$
$B$. $K_2Cr_2O_7 / 50\% H_2SO_4$	$II$. $PAN$
$C$. Bleaching of clothes and paper	$III$. $Na_3AsO_3$
$D$. Eye irritant	$IV$. $BOD$
	$V$. $H_2O_2$

The ozone layer exists up to $20 \ km$ above the Earth. Which of the following statements is true regarding the ozone layer and ozone?

Similar Questions

Match the following:
List-$I$ List-$II$
$A$. Insecticide $I$. $COD$
$B$. $K_2Cr_2O_7 / 50\% H_2SO_4$ $II$. $PAN$
$C$. Bleaching of clothes and paper $III$. $Na_3AsO_3$
$D$. Eye irritant $IV$. $BOD$
$V$. $H_2O_2$

The correct answer is:

Which of the following pollutants does not undergo decomposition by natural processes?

The secondary precursors of photochemical smog are

Which one of the following depletes the ozone layer?

The correct statement about photochemical smog is .... .

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