railway RRB Technician Grade 3 Mock Test 2024 General Science Chemistry Chemistry in Everyday Life

पाण्यात नायट्रोजन सहसा कोणत्या स्वरूपात आढळतो

1
नायट्रिक ऑक्साईड
2
नायट्रेट
3
नायट्राईट
4
नायट्रस ऑक्साईड
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