Chemistry Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ? Nickel and cadmium Lead peroxide and lead Zinc and carbon Iron and cadmium Nickel and cadmium Lead peroxide and lead Zinc and carbon Iron and cadmium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has High nuclear charge Smaller atomic radius High bond dissociation energy Stable half filled 2p sub level High nuclear charge Smaller atomic radius High bond dissociation energy Stable half filled 2p sub level ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is ozone helium methane oxygen ozone helium methane oxygen 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 Remains unchanged Will be doubled Will be reduced to half Will increase four-fold Remains unchanged Will be doubled Will be reduced to half Will increase four-fold ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals form an amalgam with other metals ? Tin Zinc Lead Mercury Tin Zinc Lead Mercury ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most poisonous pollutant in water is Detergent Phosphate Zinc Arsenic Detergent Phosphate Zinc Arsenic ANSWER DOWNLOAD EXAMIANS APP
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