Chemistry When cathode rays strike a target of high atomic weight, they give rise to X-rays Positive rays ? and ? rays ?-rays X-rays Positive rays ? and ? rays ?-rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element that is in the highest percentage in the composition of the earth ? Iron Silicon Oxygen Magnesium Iron Silicon Oxygen Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 300 km 150 km 100 km 200 km 300 km 150 km 100 km 200 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry Freon' used as refrigerants is chemically Chlorinated hydrocarbon Fluorinated aromatic compound Chlorofluoro hydrocarbon Fluorinated hydrocarbon Chlorinated hydrocarbon Fluorinated aromatic compound Chlorofluoro hydrocarbon Fluorinated hydrocarbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The fat of a common mussel-secretes a sticky glue that can be used to make heart implants. The unique chemical compound present in the glue is: Hydroxy phenyl alanine Phenyl alanine Amino phenyl alanine Dihydroxy phenyl alanine Hydroxy phenyl alanine Phenyl alanine Amino phenyl alanine Dihydroxy phenyl alanine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Litmus is obtained from An alga Lichen A fungus A bacterium An alga Lichen A fungus A bacterium ANSWER DOWNLOAD EXAMIANS APP
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