Chemistry Permanent – hardness of water may be removed by addition of Alum Potassium Permangante Lime Sodium carbonate Alum Potassium Permangante Lime Sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal ion present in Vitamin B12 is Cobalt Nickel Iron Zinc Cobalt Nickel Iron Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following molecules has a bond order of 2.5 F2 HCL CO NO F2 HCL CO NO ANSWER DOWNLOAD EXAMIANS APP
Chemistry Browning of paper in old books is caused by Lack of aeration Collection of dust Frequent use Oxidation of cellulose Lack of aeration Collection of dust Frequent use Oxidation of cellulose ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain' is caused due to air - pollution by Nitrous oxide and sulphur dioxide Carbon monoxide Methane Carbon dioxide Nitrous oxide and sulphur dioxide Carbon monoxide Methane Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemically ‘Quick Silver is known as Aluminium Silver Copper Mercury Aluminium Silver Copper Mercury ANSWER DOWNLOAD EXAMIANS APP
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