Teaching OSSSC TGT Teachers Mock Test Series 2025 Chemistry Organic Chemistry – Some Basic Principles and Techniques Qualitative and Quantitative Analysis of Organic Compounds
NO2 गैस है:
1
रंगहीन, उदासीन
2
रंगहीन, अम्लीय
3
भूरी, अम्लीय
4
भूरी, उदासीन