Chemistry Rutherford’s scattering experiment proved the presence of Atoms in all matter Electrons in atoms Nucleus in atoms Neutrons in atoms Atoms in all matter Electrons in atoms Nucleus in atoms Neutrons in atoms ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuCO3 Cu(OH)2 CuSO4 CuO Cu(NO3)2 CuCO3 Cu(OH)2 CuSO4 CuO Cu(NO3)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical properties of isotopes Need not be different Must be different Need not be same Must be same Need not be different Must be different Need not be same Must be same ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tetra ethyle lead (TEL) is An antiknock compound A catalyst in burning fossil fuel An antioxidant A reductant An antiknock compound A catalyst in burning fossil fuel An antioxidant A reductant ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method of concentrating the ore which makes use of the difference in density between ore and impurities is called levigation liquation magnetic separation leaching levigation liquation magnetic separation leaching ANSWER DOWNLOAD EXAMIANS APP
Chemistry The substance which does not expand on going from liquid state to solid state is Type metal Cast-iron Aluminium Water Type metal Cast-iron Aluminium Water ANSWER DOWNLOAD EXAMIANS APP
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