[{"id":253085,"question":"Fluorine is largely used in","choices":[{"text":"rocket fuels","value":"A"},{"text":"making Teflon","value":"B"},{"text":"making freon","value":"C"},{"text":"All","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253084,"question":"Which noble gas is used in mixture used for breathing by divers?","choices":[{"text":"Ge","value":"A"},{"text":"Ar","value":"B"},{"text":"Kr","value":"C"},{"text":"He","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253083,"question":"Which compound gives carbon when heated with conc. H2SO4.","choices":[{"text":"Starch","value":"A"},{"text":"Ethyl alcohol","value":"B"},{"text":"Oxalic acid","value":"C"},{"text":"Formic acid","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253081,"question":"The reaction between Cu and conc. H2SO4 produces","choices":[{"text":"Cu+2","value":"A"},{"text":"SO<sub>2</sub>","value":"B"},{"text":"SO<sub>3</sub>","value":"C"},{"text":"H<sub>2</sub>","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":253080,"question":"Which of the following compounds is not known?","choices":[{"text":"SbCl","value":"A"},{"text":"NCl3","value":"B"},{"text":"Nl3","value":"C"},{"text":"NCl5","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253079,"question":"Which element of group V-A and VII-A does not use d-orbital?","choices":[{"text":"Nitrogen","value":"A"},{"text":"Sulphur","value":"B"},{"text":"Arsenic","value":"C"},{"text":"Chlorine","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253078,"question":"Which one of the following doesn't exhibit allotropy?","choices":[{"text":"Bi","value":"A"},{"text":"As","value":"B"},{"text":"N","value":"C"},{"text":"P","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253077,"question":"Which pair of following pair is metalloid?","choices":[{"text":"Antimony and bismuth","value":"A"},{"text":"Phosphorous and arsenic","value":"B"},{"text":"Nitrogen and phosphorous","value":"C"},{"text":"Arsenic and antimony","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253076,"question":"Which of the following elements is most metallic","choices":[{"text":"Bi","value":"A"},{"text":"sb","value":"B"},{"text":"As","value":"C"},{"text":"P","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253075,"question":"The element which exhibits maximum catenation property is","choices":[{"text":"C","value":"A"},{"text":"Pb","value":"B"},{"text":"Ge","value":"C"},{"text":"Sn","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253073,"question":"Elements of group IV-A are","choices":[{"text":"neither strongly electropositive nor strongly electronegative","value":"A"},{"text":"strongly electropositive","value":"B"},{"text":"strongly electronegative","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253072,"question":"The general electronic configuration of group IV-A elements is","choices":[{"text":"ns2, np6","value":"A"},{"text":"ns2, np4","value":"B"},{"text":"ns2, np3","value":"C"},{"text":"ns2, np2","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253070,"question":"What is the formula of silica?","choices":[{"text":"Si2O3","value":"A"},{"text":"SiO2","value":"B"},{"text":"Si3O4","value":"C"},{"text":"SiO-","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":253069,"question":"<sub>What is name of hydrated variety of quartz?</sub>","choices":[{"text":"Rose quartz","value":"A"},{"text":"Smokey quartz","value":"B"},{"text":"Silica","value":"C"},{"text":"Opal","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253068,"question":"About 25% of earth crust mass is made up of element","choices":[{"text":"Oxygen","value":"A"},{"text":"Silicon","value":"B"},{"text":"Aluminium","value":"C"},{"text":"Aluminates","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":253067,"question":"What is the formula of talc or soapstone?","choices":[{"text":"Na2B4O7.10H2O","value":"A"},{"text":"H2Mg3(SiO3)4","value":"B"},{"text":"Cu2S","value":"C"},{"text":"NaNO3","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":253066,"question":"What is the formula of magnesite?","choices":[{"text":"PbS","value":"A"},{"text":"MgSO4. 7H2O","value":"B"},{"text":"MgCO3","value":"C"},{"text":"CaCO3","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253065,"question":"What is the formula of dolomite?","choices":[{"text":"CaMg3 (SiO3)4","value":"A"},{"text":"MgCO3","value":"B"},{"text":"MgCO3.CaCO3,","value":"C"},{"text":"MgSO4","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253064,"question":"Which is not mineral of AI?","choices":[{"text":"Diaspore","value":"A"},{"text":"Corrundam","value":"B"},{"text":"Bauxite","value":"C"},{"text":"Galena","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253063,"question":"Formula of sodium beryllite is","choices":[{"text":"Na2B4O7","value":"A"},{"text":"Na2BeO2","value":"B"},{"text":"BeONa","value":"C"},{"text":"Na2B4O7 .10 H2O","value":"D"},{"value":"E"}],"correctAnswer":2}]