Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Halogens Noble gases Light metals Heavy metals Halogens Noble gases Light metals Heavy metals ANSWER DOWNLOAD EXAMIANS APP
Chemistry Greenhouse effect is caused by Carbon monoxide Nitrogen dioxide Carbon dioxide Nitrogen Carbon monoxide Nitrogen dioxide Carbon dioxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major constituent of air is nitrogen oxygen carbon dioxide hydrogen nitrogen oxygen carbon dioxide hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen is an essential constituent of all : Vitamins Proteins Carbohydrates Fats Vitamins Proteins Carbohydrates Fats ANSWER DOWNLOAD EXAMIANS APP
Chemistry Surface water is a better source of drinking water because it is poor in Arsenic Algae Dust Bacteria Arsenic Algae Dust Bacteria ANSWER DOWNLOAD EXAMIANS APP
Chemistry The absolute temperature of a gas is doubled and the pressure is reduced to half, the volume of the gas Will be reduced to half Will increase four-fold Remains unchanged Will be doubled Will be reduced to half Will increase four-fold Remains unchanged Will be doubled ANSWER DOWNLOAD EXAMIANS APP
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