MPSC PYQ

Smog

Smog is a Environment concept from the MPSC syllabus, tested in 2 past MPSC questions (2018, 2024). Below are those real questions with their correct answers and explanations.

Real questions
2
Years tested
2 · 2018–2024
In context
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Real questions that test this

PAN (पेरोक्सीअसेटाइल नायट्रेट) खालील परस्पर क्रियेच्या परिणामी तयार होतो. PAN (Peroxyacetyl nitrate) is formed as a result of following interaction :

1)नायट्रोजन ऑक्साइड आणि सल्फर डायऑक्साइड / Nitrogen oxide and sulfer dioxide
2)कार्बन मोनोऑक्साइड आणि अस्थिर सेंद्रिय संयुगे / Carbon monoxide and volatile organic compounds
3)नायट्रोजन ऑक्साइड आणि हायड्रोकार्बन्स / Nitrogen Oxide and hydrocarbons✓ Correct
4)ओझोन आणि कण / Ozone and particulate matter

PAN (Peroxyacetyl nitrate) is a secondary pollutant formed in photochemical smog through the reaction of nitrogen oxides (NOx) and volatile hydrocarbons in the presence of sunlight.

जीवाश्म इंधन आणि पेट्रोलियमच्या ज्वलनातून __________ हे वायु मिळतात. Burning of fossil fuels and petroleum gives

a)(1) SO आणि NO
b)(2) SO2 आणि NO2✓ Correct
c)(3) S आणि N2
d)(4) NH3 आणि SO2

The burning of fossil fuels releases Sulfur dioxide (SO2) and Nitrogen dioxide (NO2), which are the primary precursors of acid rain.

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