Chemistry Which gas is most stable at room temperature N2 F2 H2 O2 N2 F2 H2 O2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Formation of ozone hole is maximum over Antarctica Europe Africa India Antarctica Europe Africa India ANSWER DOWNLOAD EXAMIANS APP
Chemistry Browning of paper in old books is caused by Frequent use Oxidation of cellulose Collection of dust Lack of aeration Frequent use Oxidation of cellulose Collection of dust Lack of aeration ANSWER DOWNLOAD EXAMIANS APP
Chemistry The reaction intermediate formed during the preparation of diethylether from ethanol by treatment with H2SO4 is Free radical Carbanion Carbocation Carbene Free radical Carbanion Carbocation Carbene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a greenhouse gas ? Sulphur dioxide Carbon dioxide Helium Nitrogen Sulphur dioxide Carbon dioxide Helium Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Permanent – hardness of water may be removed by addition of Sodium carbonate Lime Potassium Permangante Alum Sodium carbonate Lime Potassium Permangante Alum ANSWER DOWNLOAD EXAMIANS APP
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