[{"id":111295,"question":"The number of protons inside a nucleus is called","choices":[{"text":"mass number","value":"A"},{"text":"atomic weight","value":"B"},{"text":"atomic number","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":111294,"question":"The total charge of any nucleus is given as","choices":[{"text":"Ze<sup>2</sup>","value":"A"},{"text":"Z<sup>2</sup>e","value":"B"},{"text":"Z/e","value":"C"},{"text":"Ze","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":111293,"question":"The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains","choices":[{"text":"3 more neutrons","value":"A"},{"text":"3 more electrons","value":"B"},{"text":"3 more protons","value":"C"},{"text":"3 more ions","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":111292,"question":"For an atom having atomic number 'Z' and atomic weight 'A', the number of neutrons in the nucleous is","choices":[{"text":"A - Z","value":"A"},{"text":"A","value":"B"},{"text":"Z","value":"C"},{"text":"A + Z","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":111291,"question":"According to Rutherford atomic model, the positive charge in an atom","choices":[{"text":"is concentrated at its centre","value":"A"},{"text":"is in the form of positive electron at same distance from its centre","value":"B"},{"text":"is spread uniformly through its volume","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":111290,"question":"The chemical behaviour of an atom is determined by","choices":[{"text":"binding energy","value":"A"},{"text":"atomic number","value":"B"},{"text":"mass number","value":"C"},{"text":"number of isotopes","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":111289,"question":"1 amu is equal to","choices":[{"text":"1.66 x 10<sup>-24</sup>kg","value":"A"},{"text":"1.66 x 10<sup>-19</sup>kg","value":"B"},{"text":"1.66 x 10<sup>-34</sup>kg","value":"C"},{"text":"1.66 x 10<sup>-27</sup>kg","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":111288,"question":"Mass of proton is","choices":[{"text":"1.67 x 10<sup>-27</sup>kg","value":"A"},{"text":"1.67 x 10<sup>-31</sup>kg","value":"B"},{"text":"1.66 x 10<sup>-34</sup>kg","value":"C"},{"text":"1.67 x 10<sup>-17</sup>kg","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":111287,"question":"Mass of neutron is","choices":[{"text":"1.67 x 10<sup>-31</sup>kg","value":"A"},{"text":"1.67 x 10<sup>-27</sup>kg","value":"B"},{"text":"9.1 x 10<sup>-31</sup>kg","value":"C"},{"text":"1.67 x 10<sup>-</sup>19kg","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":111286,"question":"Nucleus consists of","choices":[{"text":"proton and neutron","value":"A"},{"text":"protons and electron","value":"B"},{"text":"electron and neutron","value":"C"},{"text":"protons only","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":111285,"question":"A particle having the mass of electron and charge of a proton is called a","choices":[{"text":"photon","value":"A"},{"text":"position","value":"B"},{"text":"antiproton","value":"C"},{"text":"antineutrino","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":111284,"question":"Charge on neutron is","choices":[{"text":"1.6 x 10<sup>-19</sup>C","value":"A"},{"text":"zero","value":"B"},{"text":"-1.6 x 10<sup>-19</sup>C","value":"C"},{"text":"1.2 x 10<sup>-19</sup>C","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":111283,"question":"In 1932 Chadwick discovered","choices":[{"text":"proton","value":"A"},{"text":"neutron","value":"B"},{"text":"photon","value":"C"},{"text":"electron","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":111282,"question":"Neutron was discovered by","choices":[{"text":"Curie","value":"A"},{"text":"Roentgen","value":"B"},{"text":"Chadwick","value":"C"},{"text":"Rutherford","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":111281,"question":"Neutron was discovered in","choices":[{"text":"1915","value":"A"},{"text":"1920","value":"B"},{"text":"1925","value":"C"},{"text":"1932","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":111280,"question":"Proton was discovered by Rutherford in","choices":[{"text":"1915","value":"A"},{"text":"1906","value":"B"},{"text":"1910","value":"C"},{"text":"1920","value":"D"},{"value":"E"}],"correctAnswer":4}]