A: Euro-II norms were framed to reduce the co | vedclass

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Question

(C) $Euro-II$ norms were specifically implemented to reduce the content of sulphur and aromatic compounds in fuels,not $CO$. $CO$ (carbon monoxide) is

Vedclass · Accepted Answer

Assertion is correct,but Reason is incorrect.

Vedclass · Answer

(C) $Euro-II$ norms were specifically implemented to reduce the content of sulphur and aromatic compounds in fuels,not $CO$. $CO$ (carbon monoxide) is a product of incomplete combustion,but the primary goal of $Euro-II$ was to lower sulphur content to $350 \ ppm$ in diesel and $150 \ ppm$ in petrol. Therefore,the Assertion is incorrect because it misidentifies the target pollutants of the $Euro-II$ norms. However,the Reason statement is factually correct in its description of the harmful effects of these pollutants (reduced visibility due to smog and carboxyhemoglobin formation due to $CO$). Thus,the correct choice is that the Assertion is incorrect,but the Reason is correct.

$A$: $Euro-II$ norms were framed to reduce the content of $CO$ and aromatic compounds from fuels.
$R$: These compounds lead to reduced visibility and carboxyhemoglobin formation.

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$A$: $Euro-II$ norms were framed to reduce the content of $CO$ and aromatic compounds from fuels.$R$: These compounds lead to reduced visibility and carboxyhemoglobin formation.