Chemistry Conduction band electrons have more mobility than holes because they Are lighter Experience collision less frequently Have negative charge Need less energy to move them Are lighter Experience collision less frequently Have negative charge Need less energy to move them ANSWER DOWNLOAD EXAMIANS APP
Chemistry The heat energy produced when the human body metabolises 1 gram of fat is 30 KJ 39 KJ 1 KJ 29 KJ 30 KJ 39 KJ 1 KJ 29 KJ ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ? Sodium chloride Saltpetre Borax Hydrogen peroxide Sodium chloride Saltpetre Borax Hydrogen peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry In which of the following substances all carbon atoms are quaternary in nature ? Teflon Napthalene Graphite Diamond Teflon Napthalene Graphite Diamond ANSWER DOWNLOAD EXAMIANS APP
Chemistry What are the major pollutants of cigarette smoke? Dioxin and benzene Carbon monoxide and nicotine Carbon monoxide and dioxin Carbon monoxide and benzene Dioxin and benzene Carbon monoxide and nicotine Carbon monoxide and dioxin Carbon monoxide and benzene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Philosopher’s Wool is Zinc carbonate Zinc sulphate Zinc blende Zinc oxide Zinc carbonate Zinc sulphate Zinc blende Zinc oxide ANSWER DOWNLOAD EXAMIANS APP
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