Photochemical smog is a resultant of the reaction among.
NO2, O3 and peroxyacetyl nitrate in the presence of sunlight
CO, O2 and peroxyacetyl nitrate in the presence of sunlight
CO, CO2 and NO2 at low temperature
high concentration of NO2, O3 and CO in the evening
For election to the Lok Sabha, a nomination paper can be filed by
Miscellaneous · Easy
In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
Miscellaneous · Easy
Which among the following events happened earliest ?
Miscellaneous · Easy
An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
Miscellaneous · Easy