Chemistry The green colour seen in firework displays is due to the chloride salt of : Calcium Strontium Barium Sodium Calcium Strontium Barium Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the covalency of nitrogen in ammonia molecule 3 4 2 5 3 4 2 5 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused by the pollution of environment by Ozone and Carbon dioxide Carbon monoxide and Carbon dioxide Carbon dioxide and Nitrogen Nitrous oxide and Sulphur dioxide Ozone and Carbon dioxide Carbon monoxide and Carbon dioxide Carbon dioxide and Nitrogen Nitrous oxide and Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The rusting of iron is a/an None of these Electrical change Physical change Electrochemical change None of these Electrical change Physical change Electrochemical change ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to remove ink and rust stains on cloth? Kerosene oil Alcohol Ether Oxalic acid Kerosene oil Alcohol Ether Oxalic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is 3.05 gram 2.05 gram 5.05 gram 4.05 gram 3.05 gram 2.05 gram 5.05 gram 4.05 gram ANSWER DOWNLOAD EXAMIANS APP
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