Chemistry Iron rusts quickly in Rain water Distilled water Sea water River water Rain water Distilled water Sea water River water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle? 100 years 3 billion years 13 days 0.01 minute 100 years 3 billion years 13 days 0.01 minute ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal is the heaviest in periodic table among the following ? Pb Os Pt W Pb Os Pt W ANSWER DOWNLOAD EXAMIANS APP
Chemistry If there is one million Mg2+ ions in MgCl2, how many chloride ions are there? Two million One million Ten million Half a million Two million One million Ten million Half a million ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method that cannot be used for removing permanent hardness of water is adding caustic soda adding sodium carbonate distillation boiling adding caustic soda adding sodium carbonate distillation boiling ANSWER DOWNLOAD EXAMIANS APP
Chemistry The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of an addition reaction a condensation reaction an oxidation reaction an elimination reaction an addition reaction a condensation reaction an oxidation reaction an elimination reaction ANSWER DOWNLOAD EXAMIANS APP
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