Chemistry Sea water is saltier than rain water because The air around the sea is saltish Sea animals are salt producing Rivers wash away salts from earth and pour them into the sea Sea beds have salt producing mines The air around the sea is saltish Sea animals are salt producing Rivers wash away salts from earth and pour them into the sea Sea beds have salt producing mines ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is non-radioactive ? Uranium Zirconium Plutonium Thorium Uranium Zirconium Plutonium Thorium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The “King of Metals” is : Iron Silver Gold Aluminium Iron Silver Gold Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry German silver, an alloy, does not contain the metal Zinc Copper Silver Nickel Zinc Copper Silver Nickel ANSWER DOWNLOAD EXAMIANS APP
Chemistry An important green-house gas other than methane being produced from the agricultural fields is Ammonia Sulphur dioxide Arsine Nitrous oxide Ammonia Sulphur dioxide Arsine Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind? 1/4 1/6 1/3 1/8 1/4 1/6 1/3 1/8 ANSWER DOWNLOAD EXAMIANS APP
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