Chemistry The most abundant rare gas in the atmosphere is Ne He Ar Xe Ne He Ar Xe ANSWER DOWNLOAD EXAMIANS APP
Chemistry In an oxygen molecule, two atoms are united by Three bonds One bond Two bonds Four bonds Three bonds One bond Two bonds Four bonds ANSWER DOWNLOAD EXAMIANS APP
Chemistry Normal rainwater is slightly acidic due to the presence of Sulphur dioxide Methane None of these Carbon dioxide Sulphur dioxide Methane None of these Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The scientist who experimentally proved the existance of positron is Anderson Bethe Bohr Fermi Anderson Bethe Bohr Fermi ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most poisonous pollutant in water is Zinc Phosphate Detergent Arsenic Zinc Phosphate Detergent Arsenic ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is secondary air pollutant ? SO2 Dust particles NO2 Photochemical smog SO2 Dust particles NO2 Photochemical smog ANSWER DOWNLOAD EXAMIANS APP
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