Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuSO4 Cu(NO3)2 CuCO3 Cu(OH)2 CuO CuSO4 Cu(NO3)2 CuCO3 Cu(OH)2 CuO ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of ozone in the stratosphere is responsible for Higher rate of photosynthesis Checking the penetration of ultra-violet rays to the earth Supplying oxygen for people travelling in jets Increasing the average global temperature in recent years Higher rate of photosynthesis Checking the penetration of ultra-violet rays to the earth Supplying oxygen for people travelling in jets Increasing the average global temperature in recent years ANSWER DOWNLOAD EXAMIANS APP
Chemistry The new strain of bacteria produced by biotechnology in alcohol industry is Escherichia coli Saccharomyces cerevisiae Bacillus subtilis Pseudomonas putida Escherichia coli Saccharomyces cerevisiae Bacillus subtilis Pseudomonas putida ANSWER DOWNLOAD EXAMIANS APP
Chemistry The total energy of revolving electron in an atom Cannot be negative Can have any value above zero Can never be positive Will always be positive Cannot be negative Can have any value above zero Can never be positive Will always be positive ANSWER DOWNLOAD EXAMIANS APP
Chemistry Exposure to mixtures of chemicals are greater than expected on the basis of effects of exposure to each chemical individually. This is known as Synergism Additives Independent Antagonism Synergism Additives Independent Antagonism ANSWER DOWNLOAD EXAMIANS APP
Chemistry Physico-chemical characteristics of water in water sources undergo changes due to Effluents Auatic fungi Aquatic macrophytes Evapotranspiration Effluents Auatic fungi Aquatic macrophytes Evapotranspiration ANSWER DOWNLOAD EXAMIANS APP
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