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? 1/3 1/4 1/8 1/6 1/3 1/4 1/8 1/6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Philosopher’s wool is chemically Zinc oxide Magnesium oxide Aluminium oxide Calcium oxide Zinc oxide Magnesium oxide Aluminium oxide Calcium oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The value of Avogadro Number is 6.023 × 1023 6.023 × 1022 6.023 × 1025 6.023 × 1024 6.023 × 1023 6.023 × 1022 6.023 × 1025 6.023 × 1024 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Entropy of Universe is always Constant Increasing Zero Decreasing Constant Increasing Zero Decreasing ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method that cannot be used for removing permanent hardness of water is distillation adding caustic soda boiling adding sodium carbonate distillation adding caustic soda boiling adding sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal is extracted from sea water? Aluminium Potassium Beryllium Magnesium Aluminium Potassium Beryllium Magnesium ANSWER DOWNLOAD EXAMIANS APP
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