Gurushala

pradeep negi

Posted 4 year ago

pradeep negi

Report

The most dangerous metal pollutant of automobile exhaust is---
(a) cadmium
(b) silver
(c) lead
 
(d) manganese

4 Answer(s)

Mitesh Sharma

Posted 4 year ago Mitesh Sharma

Of all the metallic pollutants, the most hazardous metal pollutant of automobile exhaust is lead. Lead (Pb) is a heavy metal that is denser than most metals. It is released due to the combustion of petrol as tetraethyl lead is used as an antiknock in petrol.

Report

Shweta Jain

Posted 4 year ago Shweta Jain Gurushala Teacher Coach

Mercury, Cadmium, Lead and copper are hazardous metal pollutants out of which lead is the most hazardous immobile pollutant.

Report

Seema Kumari

Posted 4 year ago Seema Kumari

Lead (Pb) is a heavy metal that is denser than most metals.

Report

Nishu Sharma

Posted 4 year ago Nishu Sharma

Lead is added to the fuel to make it burn smoothly but it's oxides and aome of the particles when get released in Atmosphere cause dangerous pollution.

Report

<strong style="margin: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 14px; line-height: inherit; font-family: Helvetica, Arial, sans-serif; vertical-align: baseline; color: #777777; background-color: #ffffff;">The most dangerous metal pollutant of automobile exhaust is---
<p style="margin: 0px 0px 20px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 14px; line-height: inherit; font-family: Helvetica, Arial, sans-serif; vertical-align: baseline; color: #777777; background-color: #ffffff;">(a) cadmium
<p style="margin: 0px 0px 20px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 14px; line-height: inherit; font-family: Helvetica, Arial, sans-serif; vertical-align: baseline; color: #777777; background-color: #ffffff;">(b) silver
<p style="margin: 0px 0px 20px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 14px; line-height: inherit; font-family: Helvetica, Arial, sans-serif; vertical-align: baseline; color: #777777; background-color: #ffffff;">(c) lead
&nbsp;
<p style="margin: 0px 0px 20px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 14px; line-height: inherit; font-family: Helvetica, Arial, sans-serif; vertical-align: baseline; color: #777777; background-color: #ffffff;">(d) manganese

Attach File