Chemistry Which one of the following is a major green house gas? Carbon dioxide Freon Carbon monoxide Chloro fluorocarbon Carbon dioxide Freon Carbon monoxide Chloro fluorocarbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry All isotopes of the same element have ________ The same atomic number but different atomic masses Different atomic numbers and different atomic mass Different atomic numbers and the same atomic mass The same atomic number and the atomic mass The same atomic number but different atomic masses Different atomic numbers and different atomic mass Different atomic numbers and the same atomic mass The same atomic number and the atomic mass ANSWER DOWNLOAD EXAMIANS APP
Chemistry The antiparticle of an electron is Alpha particles Positron Beta particles Proton Alpha particles Positron Beta particles Proton ANSWER DOWNLOAD EXAMIANS APP
Chemistry The charcoal used to decolourise brown sugar solution is Wood charcoal Sugar charcoal Animal charcoal Coconut charcoal Wood charcoal Sugar charcoal Animal charcoal Coconut charcoal ANSWER DOWNLOAD EXAMIANS APP
Chemistry The open "Sigrees" or coal stoves often require fanning to sustain burning because of Accumulation of smoke and dust over the sigrees Tendency of carbon dioxide to form a layer along with dust smoke Lack of oxygen in the surroundings of sigrees Interrupted release of moisture from the material Accumulation of smoke and dust over the sigrees Tendency of carbon dioxide to form a layer along with dust smoke Lack of oxygen in the surroundings of sigrees Interrupted release of moisture from the material ANSWER DOWNLOAD EXAMIANS APP
Chemistry A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? From pink to blue-green From brown to blue-black From blue to pink From brown to orange-red From pink to blue-green From brown to blue-black From blue to pink From brown to orange-red ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS