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
Chemistry Dry ice is the solid form of : Air Water Nitrogen Carbon di–oxide Air Water Nitrogen Carbon di–oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Normal rainwater is slightly acidic due to the presence of Methane None of these Sulphur dioxide Carbon dioxide Methane None of these Sulphur dioxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuCO3 Cu(OH)2 CuO Cu(NO3)2 CuSO4 CuCO3 Cu(OH)2 CuO Cu(NO3)2 CuSO4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for filling weather balloons is Nitrogen Hydrogen Helium Air Nitrogen Hydrogen Helium Air ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iodine value is used to estimate Hydroxyl groups in oil Unsaturation in oil Carboxylic groups in oil Alkali content in oil Hydroxyl groups in oil Unsaturation in oil Carboxylic groups in oil Alkali content in oil ANSWER DOWNLOAD EXAMIANS APP
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