Chemistry What is the element required for solar energy conversion ? Silicon Ultra pure carbon Beryllium Tantalum Silicon Ultra pure carbon Beryllium Tantalum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is not a characteristic of transition metals? Malleability Low ionization energy Low electronegativity Tendency to gain electrons Malleability Low ionization energy Low electronegativity Tendency to gain electrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of d-electrons in Fe2+ (Z = 26) is not equal to that of p-electrons in Ne(Z = 10) s-electrons in Mg(Z = 12) d-electrons in Fe(Z = 26) p-electrons in CI(Z = 17) p-electrons in Ne(Z = 10) s-electrons in Mg(Z = 12) d-electrons in Fe(Z = 26) p-electrons in CI(Z = 17) ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals pollutes the air of a city having large number of automobiles? Cadmium Copper Lead Chromium Cadmium Copper Lead Chromium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The heaviest naturally occurring element is: Thorium Polonium Uranium Mercury Thorium Polonium Uranium Mercury ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer is present in Stratosphere Exosphere Troposphere Ionosphere Stratosphere Exosphere Troposphere Ionosphere ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS