Chemistry Diamond is harder than graphite because of : None of these Difference of crystalline structures Tetrahedral structure of diamond Difference in layers of atoms None of these Difference of crystalline structures Tetrahedral structure of diamond Difference in layers of atoms ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal is extracted from sea water? Beryllium Potassium Magnesium Aluminium Beryllium Potassium Magnesium Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Calcium salts used as fertilizer is : Calcium Carbide Calcium Sulphate Calcium Cyanide Calcium Carbonate Calcium Carbide Calcium Sulphate Calcium Cyanide Calcium Carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compounds formed when hydrogen combines with p-block elements are called Ionic hydrides Metallic hydrides Molecular hydrides Polynuclear hydrides Ionic hydrides Metallic hydrides Molecular hydrides Polynuclear hydrides 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 : K1 = K2 K 1 = 1 /K2 K1 = 2K2 K1 = K2/2 K1 = K2 K 1 = 1 /K2 K1 = 2K2 K1 = K2/2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen in water is commonly found in the form of Nitrite Nitrate Nitrous oxide Nitric oxide Nitrite Nitrate Nitrous oxide Nitric oxide ANSWER DOWNLOAD EXAMIANS APP
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