Chemistry The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle? 100 years 13 days 0.01 minute 3 billion years 100 years 13 days 0.01 minute 3 billion years ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rutherford’s scattering experiment proved the presence of Nucleus in atoms Neutrons in atoms Electrons in atoms Atoms in all matter Nucleus in atoms Neutrons in atoms Electrons in atoms Atoms in all matter ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called None of these Smog Eutrophication Green house effect None of these Smog Eutrophication Green house effect ANSWER DOWNLOAD EXAMIANS APP
Chemistry The weight of 6.023 × 1022 atoms of carbon is 120 gms 1.2 gms 0.12 gms 12 gms 120 gms 1.2 gms 0.12 gms 12 gms ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver nitrate solution is kept in brown bottles in laboratory because Brown bottles stops the passage of light through it It reacts with ordinary white bottles Brown bottles do not react with it Brown bottles react with it Brown bottles stops the passage of light through it It reacts with ordinary white bottles Brown bottles do not react with it Brown bottles react with it ANSWER DOWNLOAD EXAMIANS APP
Chemistry Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives Copper at cathode and anodes dissolve to give copper Copper at cathode and oxygen at anode Hydrogen at cathode and oxygen at anode Copper at anode and oxygen at cathode. Copper at cathode and anodes dissolve to give copper Copper at cathode and oxygen at anode Hydrogen at cathode and oxygen at anode Copper at anode and oxygen at cathode. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS