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