Chemistry In upper layer of atmosphere ozone is formed by The combination of oxygen molecules The action of nitrogen on oxygen in atmosphere Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen The combination of oxygen molecules The action of nitrogen on oxygen in atmosphere Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element which is used for vulcanizing rubber Bromine Phosphorus Sulphur Silicon Bromine Phosphorus Sulphur Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Epsom salt is used In paper industry In softening water As purgative In making tooth paste In paper industry In softening water As purgative In making tooth paste ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a greenhouse gas ? Hydrogen Chlorofluorocarbon Nitric oxide Carbon dioxide Hydrogen Chlorofluorocarbon Nitric oxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the most reactive gaseous element Flourine Chlorine Iodine Bromine Flourine Chlorine Iodine Bromine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is the petroleum wax ? Bees wax Jojoba wax Paraffin wax Carnauba wax Bees wax Jojoba wax Paraffin wax Carnauba wax ANSWER DOWNLOAD EXAMIANS APP
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