Chemistry The metal used for making aircrafts and rockets is Lead Aluminium Copper Nickel Lead Aluminium Copper Nickel ANSWER DOWNLOAD EXAMIANS APP
Chemistry The amount of chlorine available in water after disinfection is called as Combined available chlorine Residual chlorine Free chlorine Free available chlorine Combined available chlorine Residual chlorine Free chlorine Free available chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a gaseous air pollutant? Oxides of nitrogen Smoke Hydrocarbon Oxides of sulphur Oxides of nitrogen Smoke Hydrocarbon Oxides of sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heating of a ore below its melting point in the absence of air is known as Smelting Calcination Roasting Refining Smelting Calcination Roasting Refining ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical composition of cement is Limestone and Gypsum Limestone and Clay Limestone, Clay and Gypsum Clay and Gypsum Limestone and Gypsum Limestone and Clay Limestone, Clay and Gypsum Clay and Gypsum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atomic number is the number equal to Neutrons Protons Electrons None of these Neutrons Protons Electrons None of these ANSWER DOWNLOAD EXAMIANS APP