Chemistry Which one of the following is a micro-element ? Chlorine Oxygen Nitrogen Hydrogen Chlorine Oxygen Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hard steel contains 2 to 5 per cent carbon 0.1 to 0.4 per cent carbon 0.5 to 1.5 per cent carbon 0.01 to 0.04 per cent carbon 2 to 5 per cent carbon 0.1 to 0.4 per cent carbon 0.5 to 1.5 per cent carbon 0.01 to 0.04 per cent carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atmospheric gas that is mainly responsible for Green House effect : Oxygen Ozone Carbondioxide Nitrogen Oxygen Ozone Carbondioxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a donor atom? Aluminium Phosphorus Arsenic Antimony Aluminium Phosphorus Arsenic Antimony ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals form an amalgam with other metals ? Zinc Lead Tin Mercury Zinc Lead Tin Mercury ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the principal ore of aluminium ? Dolomite Bauxite Copper Lignite Dolomite Bauxite Copper Lignite ANSWER DOWNLOAD EXAMIANS APP
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