Chemistry Which one of the following elements is an example of noble gas ? Helium Nitrogen Hydrogen Chlorine Helium Nitrogen Hydrogen Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical formula of washing soda is NaHCO3 Ca(OH)2 Na2SO4.10H2O Na2CO3.10H2O NaHCO3 Ca(OH)2 Na2SO4.10H2O Na2CO3.10H2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry The items amenable to detection by soft x-rays are contrabands lead in bullets narcotics genuine coins from counterfeit coins contrabands lead in bullets narcotics genuine coins from counterfeit coins ANSWER DOWNLOAD EXAMIANS APP
Chemistry The common refrigerant in domestic refrigerator is Freon Oxygen Neon Nitrogen Freon Oxygen Neon Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry When iron rusts, its weight First increases and then decreases Remains the same Decreases Increases First increases and then decreases Remains the same Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one out of the following helps in burning ? Nitrogen Carbon monoxide Carbon dioxide Oxygen Nitrogen Carbon monoxide Carbon dioxide Oxygen ANSWER DOWNLOAD EXAMIANS APP
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