General Science agnishaman Me Kaun - Si Gas Prayukt Hoti Hai ?


Q.11273: अग्निशमन में कौन - सी गैस प्रयुक्त होती है ?
A. हीलियम
B. CO₂
C. CO
D. O₂
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अग्निशमन में कौन - सी गैस प्रयुक्त होती है ? - Which gas is used in fire fighting? - agnishaman Me Kaun - Si Gas Prayukt Hoti Hai ? General Science in hindi,  Chemistry CO₂ question answers in hindi pdf  CO questions in hindi, Know About Helium General Science online test General Science notes in hindi quiz book    O₂


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