Chemistry Which of the following is used in welding broken pieces of iron rails and machine parts? Aluminium powder None of these Aluminium sulphate Solder Aluminium powder None of these Aluminium sulphate Solder ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main buffer system of the human blood is NH2CONH2 - NH2CONH+ CH3COOH - CH3COO- H2CO3 - HCO3 H2CO3 - CO32- NH2CONH2 - NH2CONH+ CH3COOH - CH3COO- H2CO3 - HCO3 H2CO3 - CO32- ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Experience collision less frequently Need less energy to move them Are lighter Have negative charge Experience collision less frequently Need less energy to move them Are lighter Have negative charge ANSWER DOWNLOAD EXAMIANS APP
Chemistry Drinking soda is Neutral Alkaline Oxidant Acidic Neutral Alkaline Oxidant Acidic ANSWER DOWNLOAD EXAMIANS APP
Chemistry In addition to hydrogen, the other abundant element present on Sun’s surface is Neon Helium Oxygen Argon Neon Helium Oxygen Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gunpowder consits of a mixture of Sand and TNT Sulphur, sand and charcoal TNT and charcoal Nitre, sulphur and charcoal Sand and TNT Sulphur, sand and charcoal TNT and charcoal Nitre, sulphur and charcoal ANSWER DOWNLOAD EXAMIANS APP
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