[{"id":253035,"question":"Which of the following are not known to form compounds in more than one oxidation state?","choices":[{"text":"Transition metals","value":"A"},{"text":"Halogens","value":"B"},{"text":"Alkali metals","value":"C"},{"text":"Noble gases","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253032,"question":"Which set of elements is good loser of electrons","choices":[{"text":"F2. Cl2, Br2","value":"A"},{"text":"N, P. As","value":"B"},{"text":"O. S, Se","value":"C"},{"text":"Li, Na, K","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253031,"question":"Which one of the following elements is most electropositive out of group I -A and II-A group?","choices":[{"text":"K","value":"A"},{"text":"Mg","value":"B"},{"text":"Na","value":"C"},{"text":"Ca","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253030,"question":"Which of the following does not give flame test?","choices":[{"text":"Li","value":"A"},{"text":"Ba","value":"B"},{"text":"Mg","value":"C"},{"text":"Sr","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253029,"question":"The elements of group I-A react violently with water and make the solution","choices":[{"text":"neutral","value":"A"},{"text":"amphoteric","value":"B"},{"text":"acidic","value":"C"},{"text":"alkaline","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253027,"question":"Which is the least reactive of all the alkali metals","choices":[{"text":"Li","value":"A"},{"text":"Na","value":"B"},{"text":"K","value":"C"},{"text":"Cs","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253025,"question":"One of the following metals is the most reactive and form super oxide. Indicate that","choices":[{"text":"Mg","value":"A"},{"text":"K","value":"B"},{"text":"Be","value":"C"},{"text":"Li","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":253022,"question":"Lithium differs from rest of members of its group due to which of following reasons","choices":[{"text":"High E.N of Li+1","value":"A"},{"text":"Small radius","value":"B"},{"text":"High charge density","value":"C"},{"text":"All above are correct","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253019,"question":"Which one of following property is not true about alkali metals?","choices":[{"text":"Strongest bases due to their hydrides","value":"A"},{"text":"Low ionization energy","value":"B"},{"text":"Oxidation number more than +1","value":"C"},{"text":"Form acidic oxides","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253018,"question":"Which one of the following elements is not an alkali metal?","choices":[{"text":"Na","value":"A"},{"text":"Sr","value":"B"},{"text":"Cs","value":"C"},{"text":"Rb","value":"D"},{"value":"E"}],"correctAnswer":2}]