PSEB-XII SERIES
Chemistry

Environmental Chemistry

1 previous year questions.

Volume: 1 Ques
Yield: Medium

High-Yield Trend

1
2025

Chapter Questions
1 MCQs

01
PYQ 2025
medium
chemistry ID: pseb-xii
What is DDT among the following :
1
Fertilizer
2
Biodegradable pollutant
3
Non-Biodegradable pollutant
4
Green House gas