Chemistry Which one is the lightest element in the periodic table Oxygen Carbon Hydrogen Helium Oxygen Carbon Hydrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The new strain of bacteria produced by biotechnology in alcohol industry is Bacillus subtilis Escherichia coli Saccharomyces cerevisiae Pseudomonas putida Bacillus subtilis Escherichia coli Saccharomyces cerevisiae Pseudomonas putida ANSWER DOWNLOAD EXAMIANS APP
Chemistry ________ is a by product of sewage treatment and can be decomposed to produce biogas Scum Sewer Sludge Sewage Scum Sewer Sludge Sewage ANSWER DOWNLOAD EXAMIANS APP
Chemistry The “King of Metals” is : Silver Gold Aluminium Iron Silver Gold Aluminium Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide level in the atmosphere can be reduced by using Static electricity to attract it in factory chimneys Low - sulphur fuels Catalytic converters in industry More efficient car engines Static electricity to attract it in factory chimneys Low - sulphur fuels Catalytic converters in industry More efficient car engines ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a bond is formed between two atoms, the energy of the system will Remain the same Increase Decrease May increase or decrease Remain the same Increase Decrease May increase or decrease ANSWER DOWNLOAD EXAMIANS APP
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