Chemistry Which of the following gases will effuse out of football bladder most quickly ? O2 N 2 He H2 O2 N 2 He H2 ANSWER DOWNLOAD EXAMIANS APP
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. ? Zinc and carbon Iron and cadmium Nickel and cadmium Lead peroxide and lead Zinc and carbon Iron and cadmium Nickel and cadmium Lead peroxide and lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Epsom salt is used As purgative In softening water In making tooth paste In paper industry As purgative In softening water In making tooth paste In paper industry ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method that cannot be used for removing permanent hardness of water is adding sodium carbonate adding caustic soda distillation boiling adding sodium carbonate adding caustic soda distillation boiling 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 methane helium oxygen ozone methane helium oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used in dating archaeological findings ? 13H 818O 92235U 614C 13H 818O 92235U 614C ANSWER DOWNLOAD EXAMIANS APP
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