[{"id":267238,"question":"The atomic radii of the elemtns in periodic table.","choices":[{"text":"Increase from left to right in a period","value":"A"},{"text":"Do not chage from left to right in a period","value":"B"},{"text":"Increase from top to bottom in a group","value":"C"},{"text":"Decrease from top to bottom in a group","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":267237,"question":"All the elements of Group II A are less reactive than alkali metals. This is because these elements have.","choices":[{"text":"Decreased nuclear charge","value":"A"},{"text":"Similar electronci configuration","value":"B"},{"text":"High ionization energies","value":"C"},{"text":"Relatively greatr atomic size.","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":267236,"question":"Period nuber of <sup>27</sup> Al <sub>13</sub> is","choices":[{"text":"1","value":"A"},{"text":"2","value":"B"},{"text":"3","value":"C"},{"text":"4","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":267235,"question":"Main group elements are arranged in ..............groups.","choices":[{"text":"7","value":"A"},{"text":"6","value":"B"},{"text":"8","value":"C"},{"text":"10","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":267234,"question":"Which of the following element belong to VIII A.","choices":[{"text":"Xe","value":"A"},{"text":"Mg","value":"B"},{"text":"Br","value":"C"},{"text":"Na","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":267233,"question":"Which of the following grops contain alkaline earth metals.","choices":[{"text":"I A","value":"A"},{"text":"II A","value":"B"},{"text":"VII A","value":"C"},{"text":"VIII A","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":267232,"question":"Number of peiod in the periodic table are.","choices":[{"text":"7","value":"A"},{"text":"8","value":"B"},{"text":"5","value":"C"},{"text":"16","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":267231,"question":"When we mvoe form left to right in a period, atomic size.","choices":[{"text":"Increases","value":"A"},{"text":"Decreases","value":"B"},{"text":"First increases then decreased","value":"C"},{"text":"None of the above","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":267230,"question":"The element having less value of ionizatin energy and less value of electron affinity is likely to belong to.","choices":[{"text":"Group1","value":"A"},{"text":"Group 13","value":"B"},{"text":"Group 16","value":"C"},{"text":"Group 17","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":267229,"question":"Which element has the highest melting point.","choices":[{"text":"K","value":"A"},{"text":"Cs","value":"B"},{"text":"Na","value":"C"},{"text":"Rb","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":267228,"question":"Which element is the most reactive element?","choices":[{"text":"Florine","value":"A"},{"text":"Oxygen","value":"B"},{"text":"Chlorine","value":"C"},{"text":"Nitrogen","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":267227,"question":"How many electrons can nitrogen accept in its outermost shell.","choices":[{"text":"2","value":"A"},{"text":"3","value":"B"},{"text":"4","value":"C"},{"text":"5","value":"D"},{"value":"E"}],"correctAnswer":2}]