question no twelve to fourteen
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Q.no 14--- N2--> nitro 2o2-->oxide so2-->sulphate H2o-->water N2+2O2-->2NO2 SO2+2H2O-->2H2SO4
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1. we can't store pickle in steel
2. low reactivity metal like coin age metal{ gold silver , platinum } are noble metal
mark brain list
2. low reactivity metal like coin age metal{ gold silver , platinum } are noble metal
mark brain list
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