GATE Environmental Chemistry: Atmospheric Chemistry – Previous Year Questions

2 GATE previous year questions on Atmospheric Chemistry (Environmental Chemistry, Environmental Science and Engineering) with answers and explanations, from every paper.

1. GATE 2022 ES Q43 (2 marks, Multiple select) – Which statements are NOT correct for nighttime tropospheric chemistry?
2. GATE 2026 ES Q28 (1 mark, Multiple select) – Which reactions are related to tropospheric smog formation? Select all that apply.