Chemistry Which of the following has pH value 7? H2SO4 HCl Pure Water Sodium Carbonate H2SO4 HCl Pure Water Sodium Carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry An important green-house gas other than methane being produced from the agricultural fields is Nitrous oxide Ammonia Arsine Sulphur dioxide Nitrous oxide Ammonia Arsine Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry PH scale ranges from 0 – 7 None 8 – 14 0 – 14 0 – 7 None 8 – 14 0 – 14 ANSWER DOWNLOAD EXAMIANS APP
Chemistry All isotopes of the same element have ________ The same atomic number and the atomic mass Different atomic numbers and different atomic mass The same atomic number but different atomic masses Different atomic numbers and the same atomic mass The same atomic number and the atomic mass Different atomic numbers and different atomic mass The same atomic number but different atomic masses Different atomic numbers and the same atomic mass ANSWER DOWNLOAD EXAMIANS APP
Chemistry The percentage of carbon in cost iron is : 0.5 to 1.5 3 to 5 6 to 8 0.01 to 0.25 0.5 to 1.5 3 to 5 6 to 8 0.01 to 0.25 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The greenhouse effect is caused by the higher level of which gas in the atmosphere ? Carbon dioxide Nitrous oxide Sulphur dioxide Carbon monoxide Carbon dioxide Nitrous oxide Sulphur dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
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