Chemistry Pollutant from motor car exhaust that causes mental disease is Lead SO2 Hg NO2 Lead SO2 Hg NO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element that is in the highest percentage in the composition of the earth ? Iron Magnesium Oxygen Silicon Iron Magnesium Oxygen Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water is Ground water Rain water Tap water Distilled water Ground water Rain water Tap water Distilled water ANSWER DOWNLOAD EXAMIANS APP
Chemistry If a buffer solution is diluted its pH Will slowly increase and then it will decrease Remains same Is decreased Is increased Will slowly increase and then it will decrease Remains same Is decreased Is increased ANSWER DOWNLOAD EXAMIANS APP
Chemistry The quality of petrol is expressed in terms of Gold number Cetane number Added unlead compounds Octane number Gold number Cetane number Added unlead compounds Octane number ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hydrogen is not found in atmosphere because It is absorbed by plants It immediately combines with oxygen to form water It is highly inflammable It is the lightest gas It is absorbed by plants It immediately combines with oxygen to form water It is highly inflammable It is the lightest gas ANSWER DOWNLOAD EXAMIANS APP
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