Chemistry The most reactive among the halogens is Iodine Bromine Fluorine Chlorine Iodine Bromine Fluorine Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry A balloon filled with helium rises in air because The balloon is weightless Helium pushes down on the air below the balloon Air exerts an upward force on the balloon Helium is less dense than air The balloon is weightless Helium pushes down on the air below the balloon Air exerts an upward force on the balloon Helium is less dense than air ANSWER DOWNLOAD EXAMIANS APP
Chemistry Browning of paper in old books is caused by Lack of aeration Oxidation of cellulose Frequent use Collection of dust Lack of aeration Oxidation of cellulose Frequent use Collection of dust ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atmospheric gas that is mainly responsible for Green House effect : Ozone Nitrogen Oxygen Carbondioxide Ozone Nitrogen Oxygen Carbondioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following processes is used for the production of Biodiesel ? Transesterification Translation Transcription Transamination Transesterification Translation Transcription Transamination ANSWER DOWNLOAD EXAMIANS APP
Chemistry Mercury is emitted into air by Coal fire Burning garbage Steam engine Burning coal Coal fire Burning garbage Steam engine Burning coal ANSWER DOWNLOAD EXAMIANS APP
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