Chemistry Which among the following metals provides amphoteric oxide ? Sodium Calcium Silver Aluminium Sodium Calcium Silver Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lustre of the metals is because of Reflection of light due to the presence of free electrons High density, due to closed packing of atoms Absorption of light due to the presence of cavities High polish Reflection of light due to the presence of free electrons High density, due to closed packing of atoms Absorption of light due to the presence of cavities High polish ANSWER DOWNLOAD EXAMIANS APP
Chemistry Solder metal is an alloy of Copper and zinc Lead and tin Lead and antimony Copper and tin Copper and zinc Lead and tin Lead and antimony Copper and tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of hydrogen bonds between guanine and cytosine in DNA is 1 4 2 3 1 4 2 3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry If the equilibrium constants for the systems H2 + I2 ? 2HI and 2HI ? H2 + I2 are K1 and K2 respectively, the relationship between K1 and K2 is : K 1 = 1 /K2 K1 = K2 K1 = K2/2 K1 = 2K2 K 1 = 1 /K2 K1 = K2 K1 = K2/2 K1 = 2K2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry 24 carat of diamond is equal to 200 g 95% mg 91% gold 200 mg 200 g 95% mg 91% gold 200 mg ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS